c23b4fbdbb
Now that #149310 has restricted lifetime intrinsics to only work on allocas, we can also drop the explicit size argument. Instead, the size is implied by the alloca. This removes the ability to only mark a prefix of an alloca alive/dead. We never used that capability, so we should remove the need to handle that possibility everywhere (though many key places, including stack coloring, did not actually respect this).
31 lines
1019 B
LLVM
31 lines
1019 B
LLVM
; RUN: opt -passes='module(debugify),function(dce)' -S < %s | FileCheck %s
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; CHECK-LABEL: @test
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define void @test() {
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%add = add i32 1, 2
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; CHECK-NEXT: #dbg_value(i32 1, [[add:![0-9]+]], !DIExpression(DW_OP_plus_uconst, 2, DW_OP_stack_value),
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%sub = sub i32 %add, 1
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; CHECK-NEXT: #dbg_value(i32 1, [[sub:![0-9]+]], !DIExpression(DW_OP_plus_uconst, 2, DW_OP_constu, 1, DW_OP_minus, DW_OP_stack_value),
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; CHECK-NEXT: ret void
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ret void
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}
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declare void @llvm.lifetime.start.p0(ptr nocapture) nounwind
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declare void @llvm.lifetime.end.p0(ptr nocapture) nounwind
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; CHECK-LABEL: @test_lifetime_alloca
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define i32 @test_lifetime_alloca() {
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; Check that lifetime intrinsics are removed along with the pointer.
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; CHECK-NEXT: #dbg_value
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; CHECK-NEXT: ret i32 0
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; CHECK-NOT: llvm.lifetime.start
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; CHECK-NOT: llvm.lifetime.end
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%i = alloca i8, align 4
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call void @llvm.lifetime.start.p0(ptr %i)
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call void @llvm.lifetime.end.p0(ptr %i)
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ret i32 0
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}
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; CHECK: [[add]] = !DILocalVariable
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; CHECK: [[sub]] = !DILocalVariable
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