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[X86] Added pointer math zext test case (PR22970)

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llvm-svn: 301401
This commit is contained in:
Simon Pilgrim 2017-04-26 13:03:00 +00:00
parent 6246cc6c0e
commit e093594074
1 changed files with 47 additions and 0 deletions
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llvm/test/CodeGen/X86/pr22970.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-unknown | FileCheck %s --check-prefix=X86
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s --check-prefix=X64
define i32 @PR22970_i32(i32* nocapture readonly, i32) {
; X86-LABEL: PR22970_i32:
; X86: # BB#0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl $4095, %ecx # imm = 0xFFF
; X86-NEXT: andl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl 32(%eax,%ecx,4), %eax
; X86-NEXT: retl
;
; X64-LABEL: PR22970_i32:
; X64: # BB#0:
; X64-NEXT: # kill: %ESI<def> %ESI<kill> %RSI<def>
; X64-NEXT: andl $4095, %esi # imm = 0xFFF
; X64-NEXT: movl 32(%rdi,%rsi,4), %eax
; X64-NEXT: retq
%3 = and i32 %1, 4095
%4 = add nuw nsw i32 %3, 8
%5 = zext i32 %4 to i64
%6 = getelementptr inbounds i32, i32* %0, i64 %5
%7 = load i32, i32* %6, align 4
ret i32 %7
}
define i32 @PR22970_i64(i32* nocapture readonly, i64) {
; X86-LABEL: PR22970_i64:
; X86: # BB#0:
; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
; X86-NEXT: movl $4095, %ecx # imm = 0xFFF
; X86-NEXT: andl {{[0-9]+}}(%esp), %ecx
; X86-NEXT: movl 32(%eax,%ecx,4), %eax
; X86-NEXT: retl
;
; X64-LABEL: PR22970_i64:
; X64: # BB#0:
; X64-NEXT: andl $4095, %esi # imm = 0xFFF
; X64-NEXT: movl 32(%rdi,%rsi,4), %eax
; X64-NEXT: retq
%3 = and i64 %1, 4095
%4 = add nuw nsw i64 %3, 8
%5 = getelementptr inbounds i32, i32* %0, i64 %4
%6 = load i32, i32* %5, align 4
ret i32 %6
}