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).
145 lines
4.8 KiB
LLVM
145 lines
4.8 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
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; RUN: opt -passes=inline -S < %s | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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declare void @llvm.lifetime.start.p0(ptr)
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declare void @llvm.lifetime.end.p0(ptr)
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define void @helper_both_markers() {
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; CHECK-LABEL: define void @helper_both_markers() {
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; CHECK-NEXT: [[A:%.*]] = alloca i8, align 1
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A]])
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; CHECK-NEXT: ret void
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;
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%a = alloca i8
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; Size in llvm.lifetime.start / llvm.lifetime.end differs from
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; allocation size. We should use the former.
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call void @llvm.lifetime.start.p0(ptr %a)
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call void @llvm.lifetime.end.p0(ptr %a)
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ret void
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}
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define void @test_both_markers() {
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; CHECK-LABEL: define void @test_both_markers() {
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; CHECK-NEXT: [[A_I1:%.*]] = alloca i8, align 1
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; CHECK-NEXT: [[A_I:%.*]] = alloca i8, align 1
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A_I]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A_I]])
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A_I1]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A_I1]])
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; CHECK-NEXT: ret void
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;
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call void @helper_both_markers()
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call void @helper_both_markers()
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ret void
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}
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;; Without this, the inliner will simplify out @test_no_marker before adding
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;; any lifetime markers.
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declare void @use(ptr %a)
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define void @helper_no_markers() {
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; CHECK-LABEL: define void @helper_no_markers() {
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; CHECK-NEXT: [[A:%.*]] = alloca i8, align 1
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; CHECK-NEXT: call void @use(ptr [[A]])
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; CHECK-NEXT: ret void
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;
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%a = alloca i8 ; Allocation size is 1 byte.
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call void @use(ptr %a)
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ret void
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}
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define void @test_no_marker() {
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; CHECK-LABEL: define void @test_no_marker() {
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; CHECK-NEXT: [[A_I1:%.*]] = alloca i8, align 1
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; CHECK-NEXT: [[A_I:%.*]] = alloca i8, align 1
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A_I]])
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; CHECK-NEXT: call void @use(ptr [[A_I]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A_I]])
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A_I1]])
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; CHECK-NEXT: call void @use(ptr [[A_I1]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A_I1]])
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; CHECK-NEXT: ret void
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;
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call void @helper_no_markers()
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call void @helper_no_markers()
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ret void
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}
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define void @helper_two_casts() {
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; CHECK-LABEL: define void @helper_two_casts() {
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; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A]])
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; CHECK-NEXT: ret void
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;
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%a = alloca i32
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call void @llvm.lifetime.start.p0(ptr %a)
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call void @llvm.lifetime.end.p0(ptr %a)
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ret void
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}
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define void @test_two_casts() {
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; CHECK-LABEL: define void @test_two_casts() {
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; CHECK-NEXT: [[A_I1:%.*]] = alloca i32, align 4
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; CHECK-NEXT: [[A_I:%.*]] = alloca i32, align 4
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A_I]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A_I]])
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A_I1]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A_I1]])
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; CHECK-NEXT: ret void
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;
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call void @helper_two_casts()
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call void @helper_two_casts()
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ret void
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}
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define void @helper_arrays_alloca() {
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; CHECK-LABEL: define void @helper_arrays_alloca() {
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; CHECK-NEXT: [[A:%.*]] = alloca [10 x i32], align 16
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; CHECK-NEXT: call void @use(ptr [[A]])
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; CHECK-NEXT: ret void
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;
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%a = alloca [10 x i32], align 16
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call void @use(ptr %a)
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ret void
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}
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define void @test_arrays_alloca() {
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; CHECK-LABEL: define void @test_arrays_alloca() {
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; CHECK-NEXT: [[A_I:%.*]] = alloca [10 x i32], align 16
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A_I]])
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; CHECK-NEXT: call void @use(ptr [[A_I]])
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A_I]])
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; CHECK-NEXT: ret void
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;
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call void @helper_arrays_alloca()
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ret void
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}
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%swift.error = type opaque
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define void @helper_swifterror_alloca() {
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; CHECK-LABEL: define void @helper_swifterror_alloca() {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[SWIFTERROR:%.*]] = alloca swifterror ptr, align 8
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; CHECK-NEXT: store ptr null, ptr [[SWIFTERROR]], align 8
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; CHECK-NEXT: ret void
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;
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entry:
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%swifterror = alloca swifterror ptr, align 8
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store ptr null, ptr %swifterror, align 8
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ret void
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}
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define void @test_swifterror_alloca() {
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; CHECK-LABEL: define void @test_swifterror_alloca() {
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; CHECK-NEXT: [[SWIFTERROR_I:%.*]] = alloca swifterror ptr, align 8
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; CHECK-NEXT: store ptr null, ptr [[SWIFTERROR_I]], align 8
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; CHECK-NEXT: ret void
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;
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call void @helper_swifterror_alloca()
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ret void
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}
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