71 lines
3.1 KiB
Plaintext
71 lines
3.1 KiB
Plaintext
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# REQUIRES: x86-registered-target
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# RUN: llc -mtriple=x86_64-unknown-linux-gnu -run-pass=mir-debugify,dead-mi-elimination,mir-check-debugify -o - %s 2>&1 | FileCheck %s
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# RUN: llc -mtriple=x86_64-unknown-linux-gnu -run-pass=mir-debugify,mir-check-debugify -o - %s 2>&1 | FileCheck %s --check-prefix=CHECK-PASS
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--- |
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; ModuleID = 'check-line-and-variables.mir'
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source_filename = "check-line-and-variables.ll"
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@ga = dso_local global i32 2, align 4
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; Function Attrs: noinline nounwind optnone uwtable
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define dso_local i32 @foo(i32 %a, i32 %b) {
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entry:
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%a.addr = alloca i32, align 4
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%b.addr = alloca i32, align 4
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%c = alloca i32, align 4
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store i32 %a, i32* %a.addr, align 4
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store i32 %b, i32* %b.addr, align 4
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%0 = load i32, i32* %a.addr, align 4
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%1 = load i32, i32* %b.addr, align 4
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%add = add nsw i32 %0, %1
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store i32 %add, i32* %c, align 4
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%2 = load i32, i32* %c, align 4
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%mul = mul nsw i32 %2, 2
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store i32 %mul, i32* @ga, align 4
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%3 = load i32, i32* %c, align 4
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; dead-mi-elimination will remove %4 = ...
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%4 = load i32, i32* %a.addr, align 4
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ret i32 %3
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}
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...
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---
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name: foo
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alignment: 16
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stack:
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- { id: 0, name: a.addr, type: default, offset: 0, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 1, name: b.addr, type: default, offset: 0, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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- { id: 2, name: c, type: default, offset: 0, size: 4, alignment: 4,
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stack-id: default, callee-saved-register: '', callee-saved-restored: true,
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debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
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body: |
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bb.0.entry:
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liveins: $edi, $esi
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%2:gr32 = COPY $esi
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%0:gr32 = COPY $edi
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%1:gr32 = COPY killed %0
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%3:gr32 = COPY killed %2
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MOV32mr %stack.0.a.addr, 1, $noreg, 0, $noreg, %1 :: (store 4 into %ir.a.addr)
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MOV32mr %stack.1.b.addr, 1, $noreg, 0, $noreg, %3 :: (store 4 into %ir.b.addr)
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%14:gr32 = MOV32rm %stack.0.a.addr, 1, $noreg, 0, $noreg :: (load 4 from %ir.a.addr)
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%13:gr32 = ADD32rm killed %14, %stack.1.b.addr, 1, $noreg, 0, $noreg, implicit-def $eflags :: (load 4 from %ir.b.addr)
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; dead-mi-elimination will remove %15:gr32 = ...
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%15:gr32 = MOV32rm %stack.0.a.addr, 1, $noreg, 0, $noreg :: (load 4 from %ir.a.addr)
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MOV32mr %stack.2.c, 1, $noreg, 0, $noreg, killed %13 :: (store 4 into %ir.c)
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%9:gr32 = MOV32rm %stack.2.c, 1, $noreg, 0, $noreg :: (load 4 from %ir.c)
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%8:gr32 = SHL32ri killed %9, 1, implicit-def $eflags
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MOV32mr $noreg, 1, $noreg, @ga, $noreg, killed %8 :: (store 4 into @ga)
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%5:gr32 = MOV32rm %stack.2.c, 1, $noreg, 0, $noreg :: (load 4 from %ir.c)
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$eax = COPY %5
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RETQ implicit $eax
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;CHECK: WARNING: Missing line 9
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;CHECK-NEXT: Machine IR debug info check: FAIL
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;CHECK-PASS: Machine IR debug info check: PASS
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...
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