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30e0638513
While preserving the return value for @llvm.experimental.deoptimize at the IR level is useful during mid-level optimization, doing so at the machine instruction level requires generating some extra code and a return that is non-ideal. This change has LLVM lower ``` %val = call @llvm.experimental.deoptimize ret %val ``` to effectively ``` call @__llvm_deoptimize() unreachable ``` instead. llvm-svn: 265502
82 lines
3.3 KiB
LLVM
82 lines
3.3 KiB
LLVM
; RUN: llc < %s | FileCheck %s
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; RUN: llc -debug-only=stackmaps < %s 2>&1 | FileCheck --check-prefix=STACKMAPS %s
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; REQUIRES: asserts
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.11.0"
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declare i32 @llvm.experimental.deoptimize.i32(...)
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declare i8 @llvm.experimental.deoptimize.i8(...)
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declare webkit_jscc i64 @llvm.experimental.deoptimize.i64(...)
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define i32 @caller_0() {
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; CHECK-LABEL: _caller_0:
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; CHECK-NEXT: {{.+cfi.+}}
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; CHECK-NEXT: ##{{.+}}
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: {{Ltmp[0-9]+}}:
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; CHECK-NEXT: {{.+cfi.+}}
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; CHECK-NEXT: callq ___llvm_deoptimize
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; CHECK-NEXT: {{Ltmp[0-9]+}}:
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entry:
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%v = call i32(...) @llvm.experimental.deoptimize.i32() [ "deopt"(i32 0) ]
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ret i32 %v
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}
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define i8 @caller_1() {
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; CHECK-LABEL: _caller_1:
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; CHECK-NEXT: {{.+cfi.+}}
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; CHECK-NEXT: ##{{.+}}
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: {{Ltmp[0-9]+}}:
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; CHECK-NEXT: {{.+cfi.+}}
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; CHECK-NEXT: movss {{[a-zA-Z0-9_]+}}(%rip), %xmm0 ## xmm0 = mem[0],zero,zero,zero
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; CHECK-NEXT: movl $42, %edi
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; CHECK-NEXT: callq ___llvm_deoptimize
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; CHECK-NEXT: {{Ltmp[0-9]+}}:
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entry:
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%v = call i8(...) @llvm.experimental.deoptimize.i8(i32 42, float 500.0) [ "deopt"(i32 1) ]
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ret i8 %v
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}
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define i64 @caller_2() {
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; CHECK-LABEL: _caller_2:
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; CHECK-NEXT: {{.+cfi.+}}
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; CHECK-NEXT: ##{{.+}}
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; CHECK-NEXT: pushq %rax
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; CHECK-NEXT: {{Ltmp[0-9]+}}:
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; CHECK-NEXT: {{.+cfi.+}}
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; CHECK-NEXT: movl $1140457472, (%rsp) ## imm = 0x43FA0000
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; CHECK-NEXT: movl $42, %eax
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; CHECK-NEXT: callq ___llvm_deoptimize
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; CHECK-NEXT: {{Ltmp[0-9]+}}:
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entry:
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%v = call webkit_jscc i64(...) @llvm.experimental.deoptimize.i64(i32 42, float 500.0) [ "deopt"(i32 3) ]
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ret i64 %v
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}
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; STACKMAPS: Stack Maps: callsites:
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; STACKMAPS-NEXT: Stack Maps: callsite 2882400015
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; STACKMAPS-NEXT: Stack Maps: has 4 locations
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; STACKMAPS-NEXT: Stack Maps: Loc 0: Constant 0 [encoding: .byte 4, .byte 8, .short 0, .int 0]
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; STACKMAPS-NEXT: Stack Maps: Loc 1: Constant 0 [encoding: .byte 4, .byte 8, .short 0, .int 0]
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; STACKMAPS-NEXT: Stack Maps: Loc 2: Constant 1 [encoding: .byte 4, .byte 8, .short 0, .int 1]
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; STACKMAPS-NEXT: Stack Maps: Loc 3: Constant 0 [encoding: .byte 4, .byte 8, .short 0, .int 0]
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; STACKMAPS-NEXT: Stack Maps: has 0 live-out registers
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; STACKMAPS-NEXT: Stack Maps: callsite 2882400015
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; STACKMAPS-NEXT: Stack Maps: has 4 locations
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; STACKMAPS-NEXT: Stack Maps: Loc 0: Constant 0 [encoding: .byte 4, .byte 8, .short 0, .int 0]
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; STACKMAPS-NEXT: Stack Maps: Loc 1: Constant 0 [encoding: .byte 4, .byte 8, .short 0, .int 0]
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; STACKMAPS-NEXT: Stack Maps: Loc 2: Constant 1 [encoding: .byte 4, .byte 8, .short 0, .int 1]
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; STACKMAPS-NEXT: Stack Maps: Loc 3: Constant 1 [encoding: .byte 4, .byte 8, .short 0, .int 1]
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; STACKMAPS-NEXT: Stack Maps: has 0 live-out registers
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; STACKMAPS-NEXT: Stack Maps: callsite 2882400015
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; STACKMAPS-NEXT: Stack Maps: has 4 locations
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; STACKMAPS-NEXT: Stack Maps: Loc 0: Constant 12 [encoding: .byte 4, .byte 8, .short 0, .int 12]
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; STACKMAPS-NEXT: Stack Maps: Loc 1: Constant 0 [encoding: .byte 4, .byte 8, .short 0, .int 0]
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; STACKMAPS-NEXT: Stack Maps: Loc 2: Constant 1 [encoding: .byte 4, .byte 8, .short 0, .int 1]
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; STACKMAPS-NEXT: Stack Maps: Loc 3: Constant 3 [encoding: .byte 4, .byte 8, .short 0, .int 3]
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; STACKMAPS-NEXT: Stack Maps: has 0 live-out registers
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