mirror of
https://github.com/RPCS3/llvm.git
synced 2026-07-21 19:25:26 -04:00
Petar Jovanovic
8cec6c4916
Reland r317100 with minor fix regarding ComputeCommonTailLength function in BranchFolding.cpp. Skipping top CFI instructions block needs to executed on several more return points in ComputeCommonTailLength(). Original r317100 message: "Correct dwarf unwind information in function epilogue for X86" This patch aims to provide correct dwarf unwind information in function epilogue for X86. It consists of two parts. The first part inserts CFI instructions that set appropriate cfa offset and cfa register in emitEpilogue() in X86FrameLowering. This part is X86 specific. The second part is platform independent and ensures that: - CFI instructions do not affect code generation - Unwind information remains correct when a function is modified by different passes. This is done in a late pass by analyzing information about cfa offset and cfa register in BBs and inserting additional CFI directives where necessary. Changed CFI instructions so that they: - are duplicable - are not counted as instructions when tail duplicating or tail merging - can be compared as equal Added CFIInstrInserter pass: - analyzes each basic block to determine cfa offset and register valid at its entry and exit - verifies that outgoing cfa offset and register of predecessor blocks match incoming values of their successors - inserts additional CFI directives at basic block beginning to correct the rule for calculating CFA Having CFI instructions in function epilogue can cause incorrect CFA calculation rule for some basic blocks. This can happen if, due to basic block reordering, or the existence of multiple epilogue blocks, some of the blocks have wrong cfa offset and register values set by the epilogue block above them. CFIInstrInserter is currently run only on X86, but can be used by any target that implements support for adding CFI instructions in epilogue. Patch by Violeta Vukobrat. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@317579 91177308-0d34-0410-b5e6-96231b3b80d8
609 lines
19 KiB
LLVM
609 lines
19 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -O0 -mtriple=x86_64-unknown -mcpu=skx -o - %s | FileCheck %s --check-prefix=X86-O0
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; RUN: llc -mtriple=x86_64-unknown -mcpu=skx -o - %s | FileCheck %s --check-prefix=X64
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; RUN: llc -O0 -mtriple=i686-unknown -mcpu=skx -o - %s | FileCheck %s --check-prefix=686-O0
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; RUN: llc -mtriple=i686-unknown -mcpu=skx -o - %s | FileCheck %s --check-prefix=686
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@c = external constant i8, align 1
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define void @foo() {
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; X86-O0-LABEL: foo:
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; X86-O0: # BB#0: # %entry
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; X86-O0-NEXT: xorl %eax, %eax
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; X86-O0-NEXT: movl %eax, %ecx
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; X86-O0-NEXT: xorl %eax, %eax
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; X86-O0-NEXT: movzbl c, %edx
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; X86-O0-NEXT: subl %edx, %eax
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; X86-O0-NEXT: movslq %eax, %rsi
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; X86-O0-NEXT: subq %rsi, %rcx
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; X86-O0-NEXT: movb %cl, %dil
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; X86-O0-NEXT: cmpb $0, %dil
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; X86-O0-NEXT: setne %dil
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; X86-O0-NEXT: andb $1, %dil
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; X86-O0-NEXT: movb %dil, -{{[0-9]+}}(%rsp)
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; X86-O0-NEXT: cmpb $0, c
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; X86-O0-NEXT: setne %dil
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; X86-O0-NEXT: xorb $-1, %dil
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; X86-O0-NEXT: xorb $-1, %dil
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; X86-O0-NEXT: andb $1, %dil
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; X86-O0-NEXT: movzbl %dil, %eax
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; X86-O0-NEXT: movzbl c, %edx
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; X86-O0-NEXT: cmpl %edx, %eax
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; X86-O0-NEXT: setle %dil
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; X86-O0-NEXT: andb $1, %dil
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; X86-O0-NEXT: movzbl %dil, %eax
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; X86-O0-NEXT: movl %eax, -{{[0-9]+}}(%rsp)
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; X86-O0-NEXT: retq
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;
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; X64-LABEL: foo:
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; X64: # BB#0: # %entry
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; X64-NEXT: movzbl {{.*}}(%rip), %eax
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; X64-NEXT: testb %al, %al
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; X64-NEXT: setne -{{[0-9]+}}(%rsp)
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; X64-NEXT: xorl %ecx, %ecx
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; X64-NEXT: testl %eax, %eax
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; X64-NEXT: setne %cl
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; X64-NEXT: xorl %edx, %edx
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; X64-NEXT: cmpl %eax, %ecx
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; X64-NEXT: setle %dl
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; X64-NEXT: movl %edx, -{{[0-9]+}}(%rsp)
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; X64-NEXT: retq
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;
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; 686-O0-LABEL: foo:
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; 686-O0: # BB#0: # %entry
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; 686-O0-NEXT: subl $8, %esp
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; 686-O0-NEXT: .cfi_def_cfa_offset 12
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; 686-O0-NEXT: movb c, %al
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; 686-O0-NEXT: cmpb $0, %al
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; 686-O0-NEXT: setne %al
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; 686-O0-NEXT: andb $1, %al
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; 686-O0-NEXT: movb %al, {{[0-9]+}}(%esp)
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; 686-O0-NEXT: cmpb $0, c
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; 686-O0-NEXT: setne %al
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; 686-O0-NEXT: xorb $-1, %al
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; 686-O0-NEXT: xorb $-1, %al
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; 686-O0-NEXT: andb $1, %al
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; 686-O0-NEXT: movzbl %al, %ecx
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; 686-O0-NEXT: movzbl c, %edx
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; 686-O0-NEXT: cmpl %edx, %ecx
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; 686-O0-NEXT: setle %al
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; 686-O0-NEXT: andb $1, %al
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; 686-O0-NEXT: movzbl %al, %ecx
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; 686-O0-NEXT: movl %ecx, (%esp)
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; 686-O0-NEXT: addl $8, %esp
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; 686-O0-NEXT: .cfi_def_cfa_offset 4
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; 686-O0-NEXT: retl
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;
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; 686-LABEL: foo:
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; 686: # BB#0: # %entry
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; 686-NEXT: subl $8, %esp
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; 686-NEXT: .cfi_def_cfa_offset 12
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; 686-NEXT: movzbl c, %eax
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; 686-NEXT: xorl %ecx, %ecx
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; 686-NEXT: testl %eax, %eax
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; 686-NEXT: setne %cl
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; 686-NEXT: testb %al, %al
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; 686-NEXT: setne {{[0-9]+}}(%esp)
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; 686-NEXT: xorl %edx, %edx
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; 686-NEXT: cmpl %eax, %ecx
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; 686-NEXT: setle %dl
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; 686-NEXT: movl %edx, {{[0-9]+}}(%esp)
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; 686-NEXT: addl $8, %esp
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; 686-NEXT: .cfi_def_cfa_offset 4
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; 686-NEXT: retl
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entry:
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%a = alloca i8, align 1
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%b = alloca i32, align 4
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%0 = load i8, i8* @c, align 1
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%conv = zext i8 %0 to i32
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%sub = sub nsw i32 0, %conv
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%conv1 = sext i32 %sub to i64
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%sub2 = sub nsw i64 0, %conv1
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%conv3 = trunc i64 %sub2 to i8
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%tobool = icmp ne i8 %conv3, 0
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%frombool = zext i1 %tobool to i8
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store i8 %frombool, i8* %a, align 1
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%1 = load i8, i8* @c, align 1
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%tobool4 = icmp ne i8 %1, 0
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%lnot = xor i1 %tobool4, true
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%lnot5 = xor i1 %lnot, true
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%conv6 = zext i1 %lnot5 to i32
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%2 = load i8, i8* @c, align 1
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%conv7 = zext i8 %2 to i32
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%cmp = icmp sle i32 %conv6, %conv7
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%conv8 = zext i1 %cmp to i32
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store i32 %conv8, i32* %b, align 4
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ret void
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}
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@var_5 = external global i32, align 4
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@var_57 = external global i64, align 8
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@_ZN8struct_210member_2_0E = external global i64, align 8
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define void @f1() {
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; X86-O0-LABEL: f1:
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; X86-O0: # BB#0: # %entry
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; X86-O0-NEXT: movabsq $8381627093, %rax # imm = 0x1F3957AD5
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; X86-O0-NEXT: movslq var_5, %rcx
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; X86-O0-NEXT: addq %rax, %rcx
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; X86-O0-NEXT: cmpq $0, %rcx
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; X86-O0-NEXT: setne %dl
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; X86-O0-NEXT: andb $1, %dl
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; X86-O0-NEXT: movb %dl, -{{[0-9]+}}(%rsp)
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; X86-O0-NEXT: movl var_5, %esi
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; X86-O0-NEXT: xorl $-1, %esi
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; X86-O0-NEXT: cmpl $0, %esi
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; X86-O0-NEXT: setne %dl
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; X86-O0-NEXT: xorb $-1, %dl
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; X86-O0-NEXT: andb $1, %dl
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; X86-O0-NEXT: movzbl %dl, %esi
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; X86-O0-NEXT: movl %esi, %eax
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; X86-O0-NEXT: movslq var_5, %rcx
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; X86-O0-NEXT: addq $7093, %rcx # imm = 0x1BB5
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; X86-O0-NEXT: cmpq %rcx, %rax
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; X86-O0-NEXT: setg %dl
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; X86-O0-NEXT: andb $1, %dl
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; X86-O0-NEXT: movzbl %dl, %esi
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; X86-O0-NEXT: movl %esi, %eax
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; X86-O0-NEXT: movq %rax, var_57
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; X86-O0-NEXT: movl var_5, %esi
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; X86-O0-NEXT: xorl $-1, %esi
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; X86-O0-NEXT: cmpl $0, %esi
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; X86-O0-NEXT: setne %dl
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; X86-O0-NEXT: xorb $-1, %dl
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; X86-O0-NEXT: andb $1, %dl
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; X86-O0-NEXT: movzbl %dl, %esi
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; X86-O0-NEXT: movl %esi, %eax
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; X86-O0-NEXT: movq %rax, _ZN8struct_210member_2_0E
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; X86-O0-NEXT: retq
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;
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; X64-LABEL: f1:
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; X64: # BB#0: # %entry
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; X64-NEXT: movslq {{.*}}(%rip), %rax
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; X64-NEXT: xorl %ecx, %ecx
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; X64-NEXT: cmpq $-1, %rax
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; X64-NEXT: sete %cl
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; X64-NEXT: movabsq $-8381627093, %rdx # imm = 0xFFFFFFFE0C6A852B
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; X64-NEXT: cmpq %rdx, %rax
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; X64-NEXT: setne -{{[0-9]+}}(%rsp)
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; X64-NEXT: xorl %edx, %edx
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; X64-NEXT: cmpl $-1, %eax
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; X64-NEXT: sete %dl
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; X64-NEXT: addq $7093, %rax # imm = 0x1BB5
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; X64-NEXT: xorl %esi, %esi
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; X64-NEXT: cmpq %rax, %rdx
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; X64-NEXT: setg %sil
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; X64-NEXT: movq %rsi, {{.*}}(%rip)
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; X64-NEXT: movq %rcx, {{.*}}(%rip)
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; X64-NEXT: retq
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;
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; 686-O0-LABEL: f1:
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; 686-O0: # BB#0: # %entry
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; 686-O0-NEXT: pushl %ebp
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; 686-O0-NEXT: .cfi_def_cfa_offset 8
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; 686-O0-NEXT: pushl %ebx
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; 686-O0-NEXT: .cfi_def_cfa_offset 12
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; 686-O0-NEXT: pushl %edi
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; 686-O0-NEXT: .cfi_def_cfa_offset 16
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; 686-O0-NEXT: pushl %esi
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; 686-O0-NEXT: .cfi_def_cfa_offset 20
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; 686-O0-NEXT: subl $36, %esp
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; 686-O0-NEXT: .cfi_def_cfa_offset 56
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; 686-O0-NEXT: .cfi_offset %esi, -20
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; 686-O0-NEXT: .cfi_offset %edi, -16
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; 686-O0-NEXT: .cfi_offset %ebx, -12
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; 686-O0-NEXT: .cfi_offset %ebp, -8
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; 686-O0-NEXT: movl var_5, %eax
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; 686-O0-NEXT: movl %eax, %ecx
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; 686-O0-NEXT: sarl $31, %ecx
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; 686-O0-NEXT: movl %eax, %edx
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; 686-O0-NEXT: andl %ecx, %edx
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; 686-O0-NEXT: subl $-1, %edx
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; 686-O0-NEXT: sete %bl
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; 686-O0-NEXT: movl %eax, %esi
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; 686-O0-NEXT: xorl $208307499, %esi # imm = 0xC6A852B
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; 686-O0-NEXT: movl %ecx, %edi
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; 686-O0-NEXT: xorl $-2, %edi
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; 686-O0-NEXT: orl %edi, %esi
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; 686-O0-NEXT: setne {{[0-9]+}}(%esp)
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; 686-O0-NEXT: movl %eax, %edi
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; 686-O0-NEXT: subl $-1, %edi
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; 686-O0-NEXT: sete %bh
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; 686-O0-NEXT: movzbl %bh, %ebp
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; 686-O0-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill
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; 686-O0-NEXT: xorl %eax, %eax
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; 686-O0-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill
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; 686-O0-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload
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; 686-O0-NEXT: addl $7093, %eax # imm = 0x1BB5
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; 686-O0-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill
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; 686-O0-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload
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; 686-O0-NEXT: adcxl %eax, %ecx
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; 686-O0-NEXT: movl {{[0-9]+}}(%esp), %eax # 4-byte Reload
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; 686-O0-NEXT: subl %ebp, %eax
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; 686-O0-NEXT: sbbl $0, %ecx
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; 686-O0-NEXT: setl %bh
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; 686-O0-NEXT: movzbl %bh, %ebp
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; 686-O0-NEXT: movl %ebp, var_57
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; 686-O0-NEXT: movl $0, var_57+4
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; 686-O0-NEXT: movzbl %bl, %ebp
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; 686-O0-NEXT: movl %ebp, _ZN8struct_210member_2_0E
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; 686-O0-NEXT: movl $0, _ZN8struct_210member_2_0E+4
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; 686-O0-NEXT: movl %edi, {{[0-9]+}}(%esp) # 4-byte Spill
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; 686-O0-NEXT: movl %eax, {{[0-9]+}}(%esp) # 4-byte Spill
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; 686-O0-NEXT: movl %edx, {{[0-9]+}}(%esp) # 4-byte Spill
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; 686-O0-NEXT: movl %ecx, {{[0-9]+}}(%esp) # 4-byte Spill
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; 686-O0-NEXT: movl %esi, (%esp) # 4-byte Spill
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; 686-O0-NEXT: addl $36, %esp
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; 686-O0-NEXT: .cfi_def_cfa_offset 20
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; 686-O0-NEXT: popl %esi
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; 686-O0-NEXT: .cfi_def_cfa_offset 16
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; 686-O0-NEXT: popl %edi
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; 686-O0-NEXT: .cfi_def_cfa_offset 12
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; 686-O0-NEXT: popl %ebx
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; 686-O0-NEXT: .cfi_def_cfa_offset 8
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; 686-O0-NEXT: popl %ebp
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; 686-O0-NEXT: .cfi_def_cfa_offset 4
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; 686-O0-NEXT: retl
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;
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; 686-LABEL: f1:
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; 686: # BB#0: # %entry
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; 686-NEXT: pushl %edi
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; 686-NEXT: .cfi_def_cfa_offset 8
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; 686-NEXT: pushl %esi
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; 686-NEXT: .cfi_def_cfa_offset 12
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; 686-NEXT: subl $1, %esp
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; 686-NEXT: .cfi_def_cfa_offset 13
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; 686-NEXT: .cfi_offset %esi, -12
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; 686-NEXT: .cfi_offset %edi, -8
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; 686-NEXT: movl var_5, %edx
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; 686-NEXT: movl %edx, %esi
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; 686-NEXT: sarl $31, %esi
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; 686-NEXT: movl %edx, %ecx
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; 686-NEXT: andl %esi, %ecx
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; 686-NEXT: xorl %eax, %eax
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; 686-NEXT: cmpl $-1, %ecx
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; 686-NEXT: sete %al
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; 686-NEXT: movl %edx, %ecx
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; 686-NEXT: xorl $208307499, %ecx # imm = 0xC6A852B
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; 686-NEXT: movl %esi, %edi
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; 686-NEXT: xorl $-2, %edi
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; 686-NEXT: orl %ecx, %edi
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; 686-NEXT: setne (%esp)
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; 686-NEXT: xorl %ecx, %ecx
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; 686-NEXT: cmpl $-1, %edx
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; 686-NEXT: sete %cl
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; 686-NEXT: xorl %edi, %edi
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; 686-NEXT: addl $7093, %edx # imm = 0x1BB5
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; 686-NEXT: adcxl %edi, %esi
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; 686-NEXT: cmpl %ecx, %edx
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; 686-NEXT: sbbl $0, %esi
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; 686-NEXT: setl %cl
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; 686-NEXT: movzbl %cl, %ecx
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; 686-NEXT: movl %ecx, var_57
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; 686-NEXT: movl $0, var_57+4
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; 686-NEXT: movl %eax, _ZN8struct_210member_2_0E
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; 686-NEXT: movl $0, _ZN8struct_210member_2_0E+4
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; 686-NEXT: addl $1, %esp
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; 686-NEXT: .cfi_def_cfa_offset 12
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; 686-NEXT: popl %esi
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; 686-NEXT: .cfi_def_cfa_offset 8
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; 686-NEXT: popl %edi
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; 686-NEXT: .cfi_def_cfa_offset 4
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; 686-NEXT: retl
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entry:
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%a = alloca i8, align 1
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%0 = load i32, i32* @var_5, align 4
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%conv = sext i32 %0 to i64
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%add = add nsw i64 %conv, 8381627093
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%tobool = icmp ne i64 %add, 0
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%frombool = zext i1 %tobool to i8
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store i8 %frombool, i8* %a, align 1
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%1 = load i32, i32* @var_5, align 4
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%neg = xor i32 %1, -1
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%tobool1 = icmp ne i32 %neg, 0
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%lnot = xor i1 %tobool1, true
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%conv2 = zext i1 %lnot to i64
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%2 = load i32, i32* @var_5, align 4
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%conv3 = sext i32 %2 to i64
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%add4 = add nsw i64 %conv3, 7093
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%cmp = icmp sgt i64 %conv2, %add4
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%conv5 = zext i1 %cmp to i64
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store i64 %conv5, i64* @var_57, align 8
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%3 = load i32, i32* @var_5, align 4
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%neg6 = xor i32 %3, -1
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%tobool7 = icmp ne i32 %neg6, 0
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%lnot8 = xor i1 %tobool7, true
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%conv9 = zext i1 %lnot8 to i64
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store i64 %conv9, i64* @_ZN8struct_210member_2_0E, align 8
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ret void
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}
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@var_7 = external global i8, align 1
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define void @f2() {
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; X86-O0-LABEL: f2:
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; X86-O0: # BB#0: # %entry
|
|
; X86-O0-NEXT: # implicit-def: %RAX
|
|
; X86-O0-NEXT: movzbl var_7, %ecx
|
|
; X86-O0-NEXT: cmpb $0, var_7
|
|
; X86-O0-NEXT: setne %dl
|
|
; X86-O0-NEXT: xorb $-1, %dl
|
|
; X86-O0-NEXT: andb $1, %dl
|
|
; X86-O0-NEXT: movzbl %dl, %esi
|
|
; X86-O0-NEXT: xorl %esi, %ecx
|
|
; X86-O0-NEXT: movw %cx, %di
|
|
; X86-O0-NEXT: movw %di, -{{[0-9]+}}(%rsp)
|
|
; X86-O0-NEXT: movzbl var_7, %ecx
|
|
; X86-O0-NEXT: movw %cx, %di
|
|
; X86-O0-NEXT: cmpw $0, %di
|
|
; X86-O0-NEXT: setne %dl
|
|
; X86-O0-NEXT: xorb $-1, %dl
|
|
; X86-O0-NEXT: andb $1, %dl
|
|
; X86-O0-NEXT: movzbl %dl, %ecx
|
|
; X86-O0-NEXT: movzbl var_7, %esi
|
|
; X86-O0-NEXT: cmpl %esi, %ecx
|
|
; X86-O0-NEXT: sete %dl
|
|
; X86-O0-NEXT: andb $1, %dl
|
|
; X86-O0-NEXT: movzbl %dl, %ecx
|
|
; X86-O0-NEXT: movw %cx, %di
|
|
; X86-O0-NEXT: movw %di, (%rax)
|
|
; X86-O0-NEXT: retq
|
|
;
|
|
; X64-LABEL: f2:
|
|
; X64: # BB#0: # %entry
|
|
; X64-NEXT: movzbl {{.*}}(%rip), %eax
|
|
; X64-NEXT: xorl %ecx, %ecx
|
|
; X64-NEXT: testl %eax, %eax
|
|
; X64-NEXT: sete %cl
|
|
; X64-NEXT: xorl %eax, %ecx
|
|
; X64-NEXT: movw %cx, -{{[0-9]+}}(%rsp)
|
|
; X64-NEXT: xorl %ecx, %ecx
|
|
; X64-NEXT: testb %al, %al
|
|
; X64-NEXT: sete %cl
|
|
; X64-NEXT: xorl %edx, %edx
|
|
; X64-NEXT: cmpl %eax, %ecx
|
|
; X64-NEXT: sete %dl
|
|
; X64-NEXT: movw %dx, (%rax)
|
|
; X64-NEXT: retq
|
|
;
|
|
; 686-O0-LABEL: f2:
|
|
; 686-O0: # BB#0: # %entry
|
|
; 686-O0-NEXT: pushl %edi
|
|
; 686-O0-NEXT: .cfi_def_cfa_offset 8
|
|
; 686-O0-NEXT: pushl %esi
|
|
; 686-O0-NEXT: .cfi_def_cfa_offset 12
|
|
; 686-O0-NEXT: subl $2, %esp
|
|
; 686-O0-NEXT: .cfi_def_cfa_offset 14
|
|
; 686-O0-NEXT: .cfi_offset %esi, -12
|
|
; 686-O0-NEXT: .cfi_offset %edi, -8
|
|
; 686-O0-NEXT: # implicit-def: %EAX
|
|
; 686-O0-NEXT: movzbl var_7, %ecx
|
|
; 686-O0-NEXT: cmpb $0, var_7
|
|
; 686-O0-NEXT: setne %dl
|
|
; 686-O0-NEXT: xorb $-1, %dl
|
|
; 686-O0-NEXT: andb $1, %dl
|
|
; 686-O0-NEXT: movzbl %dl, %esi
|
|
; 686-O0-NEXT: xorl %esi, %ecx
|
|
; 686-O0-NEXT: movw %cx, %di
|
|
; 686-O0-NEXT: movw %di, (%esp)
|
|
; 686-O0-NEXT: movzbl var_7, %ecx
|
|
; 686-O0-NEXT: movw %cx, %di
|
|
; 686-O0-NEXT: cmpw $0, %di
|
|
; 686-O0-NEXT: setne %dl
|
|
; 686-O0-NEXT: xorb $-1, %dl
|
|
; 686-O0-NEXT: andb $1, %dl
|
|
; 686-O0-NEXT: movzbl %dl, %ecx
|
|
; 686-O0-NEXT: movzbl var_7, %esi
|
|
; 686-O0-NEXT: cmpl %esi, %ecx
|
|
; 686-O0-NEXT: sete %dl
|
|
; 686-O0-NEXT: andb $1, %dl
|
|
; 686-O0-NEXT: movzbl %dl, %ecx
|
|
; 686-O0-NEXT: movw %cx, %di
|
|
; 686-O0-NEXT: movw %di, (%eax)
|
|
; 686-O0-NEXT: addl $2, %esp
|
|
; 686-O0-NEXT: .cfi_def_cfa_offset 12
|
|
; 686-O0-NEXT: popl %esi
|
|
; 686-O0-NEXT: .cfi_def_cfa_offset 8
|
|
; 686-O0-NEXT: popl %edi
|
|
; 686-O0-NEXT: .cfi_def_cfa_offset 4
|
|
; 686-O0-NEXT: retl
|
|
;
|
|
; 686-LABEL: f2:
|
|
; 686: # BB#0: # %entry
|
|
; 686-NEXT: subl $2, %esp
|
|
; 686-NEXT: .cfi_def_cfa_offset 6
|
|
; 686-NEXT: movzbl var_7, %eax
|
|
; 686-NEXT: xorl %ecx, %ecx
|
|
; 686-NEXT: testl %eax, %eax
|
|
; 686-NEXT: sete %cl
|
|
; 686-NEXT: xorl %eax, %ecx
|
|
; 686-NEXT: movw %cx, (%esp)
|
|
; 686-NEXT: xorl %ecx, %ecx
|
|
; 686-NEXT: testb %al, %al
|
|
; 686-NEXT: sete %cl
|
|
; 686-NEXT: xorl %edx, %edx
|
|
; 686-NEXT: cmpl %eax, %ecx
|
|
; 686-NEXT: sete %dl
|
|
; 686-NEXT: movw %dx, (%eax)
|
|
; 686-NEXT: addl $2, %esp
|
|
; 686-NEXT: .cfi_def_cfa_offset 4
|
|
; 686-NEXT: retl
|
|
entry:
|
|
%a = alloca i16, align 2
|
|
%0 = load i8, i8* @var_7, align 1
|
|
%conv = zext i8 %0 to i32
|
|
%1 = load i8, i8* @var_7, align 1
|
|
%tobool = icmp ne i8 %1, 0
|
|
%lnot = xor i1 %tobool, true
|
|
%conv1 = zext i1 %lnot to i32
|
|
%xor = xor i32 %conv, %conv1
|
|
%conv2 = trunc i32 %xor to i16
|
|
store i16 %conv2, i16* %a, align 2
|
|
%2 = load i8, i8* @var_7, align 1
|
|
%conv3 = zext i8 %2 to i16
|
|
%tobool4 = icmp ne i16 %conv3, 0
|
|
%lnot5 = xor i1 %tobool4, true
|
|
%conv6 = zext i1 %lnot5 to i32
|
|
%3 = load i8, i8* @var_7, align 1
|
|
%conv7 = zext i8 %3 to i32
|
|
%cmp = icmp eq i32 %conv6, %conv7
|
|
%conv8 = zext i1 %cmp to i32
|
|
%conv9 = trunc i32 %conv8 to i16
|
|
store i16 %conv9, i16* undef, align 2
|
|
ret void
|
|
}
|
|
|
|
|
|
@var_13 = external global i32, align 4
|
|
@var_16 = external global i32, align 4
|
|
@var_46 = external global i32, align 4
|
|
|
|
define void @f3() #0 {
|
|
; X86-O0-LABEL: f3:
|
|
; X86-O0: # BB#0: # %entry
|
|
; X86-O0-NEXT: movl var_13, %eax
|
|
; X86-O0-NEXT: xorl $-1, %eax
|
|
; X86-O0-NEXT: movl %eax, %eax
|
|
; X86-O0-NEXT: movl %eax, %ecx
|
|
; X86-O0-NEXT: cmpl $0, var_13
|
|
; X86-O0-NEXT: setne %dl
|
|
; X86-O0-NEXT: xorb $-1, %dl
|
|
; X86-O0-NEXT: andb $1, %dl
|
|
; X86-O0-NEXT: movzbl %dl, %eax
|
|
; X86-O0-NEXT: movl %eax, %esi
|
|
; X86-O0-NEXT: movl var_13, %eax
|
|
; X86-O0-NEXT: xorl $-1, %eax
|
|
; X86-O0-NEXT: xorl var_16, %eax
|
|
; X86-O0-NEXT: movl %eax, %eax
|
|
; X86-O0-NEXT: movl %eax, %edi
|
|
; X86-O0-NEXT: andq %rdi, %rsi
|
|
; X86-O0-NEXT: orq %rsi, %rcx
|
|
; X86-O0-NEXT: movq %rcx, -{{[0-9]+}}(%rsp)
|
|
; X86-O0-NEXT: movl var_13, %eax
|
|
; X86-O0-NEXT: xorl $-1, %eax
|
|
; X86-O0-NEXT: movl %eax, %eax
|
|
; X86-O0-NEXT: movl %eax, %ecx
|
|
; X86-O0-NEXT: cmpl $0, var_13
|
|
; X86-O0-NEXT: setne %dl
|
|
; X86-O0-NEXT: xorb $-1, %dl
|
|
; X86-O0-NEXT: andb $1, %dl
|
|
; X86-O0-NEXT: movzbl %dl, %eax
|
|
; X86-O0-NEXT: movl %eax, %esi
|
|
; X86-O0-NEXT: andq $0, %rsi
|
|
; X86-O0-NEXT: orq %rsi, %rcx
|
|
; X86-O0-NEXT: movl %ecx, %eax
|
|
; X86-O0-NEXT: movl %eax, var_46
|
|
; X86-O0-NEXT: retq
|
|
;
|
|
; X64-LABEL: f3:
|
|
; X64: # BB#0: # %entry
|
|
; X64-NEXT: movl {{.*}}(%rip), %eax
|
|
; X64-NEXT: movl $4294967295, %ecx # imm = 0xFFFFFFFF
|
|
; X64-NEXT: xorq %rax, %rcx
|
|
; X64-NEXT: xorl %edx, %edx
|
|
; X64-NEXT: testq %rax, %rax
|
|
; X64-NEXT: sete %dl
|
|
; X64-NEXT: movl {{.*}}(%rip), %eax
|
|
; X64-NEXT: xorl %ecx, %eax
|
|
; X64-NEXT: andq %rdx, %rax
|
|
; X64-NEXT: orq %rcx, %rax
|
|
; X64-NEXT: movq %rax, -{{[0-9]+}}(%rsp)
|
|
; X64-NEXT: movl %ecx, {{.*}}(%rip)
|
|
; X64-NEXT: retq
|
|
;
|
|
; 686-O0-LABEL: f3:
|
|
; 686-O0: # BB#0: # %entry
|
|
; 686-O0-NEXT: pushl %ebp
|
|
; 686-O0-NEXT: .cfi_def_cfa_offset 8
|
|
; 686-O0-NEXT: .cfi_offset %ebp, -8
|
|
; 686-O0-NEXT: movl %esp, %ebp
|
|
; 686-O0-NEXT: .cfi_def_cfa_register %ebp
|
|
; 686-O0-NEXT: pushl %edi
|
|
; 686-O0-NEXT: pushl %esi
|
|
; 686-O0-NEXT: andl $-8, %esp
|
|
; 686-O0-NEXT: subl $8, %esp
|
|
; 686-O0-NEXT: .cfi_offset %esi, -16
|
|
; 686-O0-NEXT: .cfi_offset %edi, -12
|
|
; 686-O0-NEXT: movl var_13, %eax
|
|
; 686-O0-NEXT: movl %eax, %ecx
|
|
; 686-O0-NEXT: notl %ecx
|
|
; 686-O0-NEXT: testl %eax, %eax
|
|
; 686-O0-NEXT: sete %dl
|
|
; 686-O0-NEXT: movzbl %dl, %eax
|
|
; 686-O0-NEXT: movl var_16, %esi
|
|
; 686-O0-NEXT: movl %ecx, %edi
|
|
; 686-O0-NEXT: xorl %esi, %edi
|
|
; 686-O0-NEXT: andl %edi, %eax
|
|
; 686-O0-NEXT: movb %al, %dl
|
|
; 686-O0-NEXT: movzbl %dl, %eax
|
|
; 686-O0-NEXT: movl %ecx, %esi
|
|
; 686-O0-NEXT: orl %eax, %esi
|
|
; 686-O0-NEXT: movl %esi, (%esp)
|
|
; 686-O0-NEXT: movl $0, {{[0-9]+}}(%esp)
|
|
; 686-O0-NEXT: movl %ecx, var_46
|
|
; 686-O0-NEXT: leal -8(%ebp), %esp
|
|
; 686-O0-NEXT: popl %esi
|
|
; 686-O0-NEXT: popl %edi
|
|
; 686-O0-NEXT: popl %ebp
|
|
; 686-O0-NEXT: .cfi_def_cfa %esp, 4
|
|
; 686-O0-NEXT: retl
|
|
;
|
|
; 686-LABEL: f3:
|
|
; 686: # BB#0: # %entry
|
|
; 686-NEXT: pushl %ebp
|
|
; 686-NEXT: .cfi_def_cfa_offset 8
|
|
; 686-NEXT: .cfi_offset %ebp, -8
|
|
; 686-NEXT: movl %esp, %ebp
|
|
; 686-NEXT: .cfi_def_cfa_register %ebp
|
|
; 686-NEXT: andl $-8, %esp
|
|
; 686-NEXT: subl $8, %esp
|
|
; 686-NEXT: movl var_13, %ecx
|
|
; 686-NEXT: xorl %eax, %eax
|
|
; 686-NEXT: testl %ecx, %ecx
|
|
; 686-NEXT: notl %ecx
|
|
; 686-NEXT: sete %al
|
|
; 686-NEXT: movl var_16, %edx
|
|
; 686-NEXT: xorl %ecx, %edx
|
|
; 686-NEXT: andl %eax, %edx
|
|
; 686-NEXT: movzbl %dl, %eax
|
|
; 686-NEXT: orl %ecx, %eax
|
|
; 686-NEXT: movl %eax, (%esp)
|
|
; 686-NEXT: movl $0, {{[0-9]+}}(%esp)
|
|
; 686-NEXT: movl %ecx, var_46
|
|
; 686-NEXT: movl %ebp, %esp
|
|
; 686-NEXT: popl %ebp
|
|
; 686-NEXT: .cfi_def_cfa %esp, 4
|
|
; 686-NEXT: retl
|
|
entry:
|
|
%a = alloca i64, align 8
|
|
%0 = load i32, i32* @var_13, align 4
|
|
%neg = xor i32 %0, -1
|
|
%conv = zext i32 %neg to i64
|
|
%1 = load i32, i32* @var_13, align 4
|
|
%tobool = icmp ne i32 %1, 0
|
|
%lnot = xor i1 %tobool, true
|
|
%conv1 = zext i1 %lnot to i64
|
|
%2 = load i32, i32* @var_13, align 4
|
|
%neg2 = xor i32 %2, -1
|
|
%3 = load i32, i32* @var_16, align 4
|
|
%xor = xor i32 %neg2, %3
|
|
%conv3 = zext i32 %xor to i64
|
|
%and = and i64 %conv1, %conv3
|
|
%or = or i64 %conv, %and
|
|
store i64 %or, i64* %a, align 8
|
|
%4 = load i32, i32* @var_13, align 4
|
|
%neg4 = xor i32 %4, -1
|
|
%conv5 = zext i32 %neg4 to i64
|
|
%5 = load i32, i32* @var_13, align 4
|
|
%tobool6 = icmp ne i32 %5, 0
|
|
%lnot7 = xor i1 %tobool6, true
|
|
%conv8 = zext i1 %lnot7 to i64
|
|
%and9 = and i64 %conv8, 0
|
|
%or10 = or i64 %conv5, %and9
|
|
%conv11 = trunc i64 %or10 to i32
|
|
store i32 %conv11, i32* @var_46, align 4
|
|
ret void
|
|
}
|
|
|