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).
52 lines
2.5 KiB
LLVM
52 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature
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; RUN: opt -passes=inline -preserve-alignment-assumptions-during-inlining -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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target triple = "x86_64-unknown-linux-gnu"
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; Test behavior of inserted alignment assumptions with byval. No
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; assume should be inserted.
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define void @byval_callee(ptr byval(float) align 128 nocapture %a, ptr %b) #0 {
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; CHECK-LABEL: define {{[^@]+}}@byval_callee
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; CHECK-SAME: (ptr byval(float) align 128 captures(none) [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0:[0-9]+]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[LOAD:%.*]] = load float, ptr [[A]], align 4
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; CHECK-NEXT: [[B_IDX:%.*]] = getelementptr inbounds float, ptr [[B]], i64 8
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; CHECK-NEXT: [[ADD:%.*]] = fadd float [[LOAD]], 2.000000e+00
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; CHECK-NEXT: store float [[ADD]], ptr [[B_IDX]], align 4
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; CHECK-NEXT: ret void
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;
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entry:
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%load = load float, ptr %a, align 4
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%b.idx = getelementptr inbounds float, ptr %b, i64 8
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%add = fadd float %load, 2.0
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store float %add, ptr %b.idx, align 4
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ret void
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}
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define void @byval_caller(ptr nocapture align 64 %a, ptr %b) #0 {
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; CHECK-LABEL: define {{[^@]+}}@byval_caller
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; CHECK-SAME: (ptr align 64 captures(none) [[A:%.*]], ptr [[B:%.*]]) #[[ATTR0]] {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[A1:%.*]] = alloca float, align 128
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[A1]])
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 128 [[A1]], ptr align 128 [[A]], i64 4, i1 false)
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; CHECK-NEXT: [[LOAD_I:%.*]] = load float, ptr [[A1]], align 4
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; CHECK-NEXT: [[B_IDX_I:%.*]] = getelementptr inbounds float, ptr [[B]], i64 8
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; CHECK-NEXT: [[ADD_I:%.*]] = fadd float [[LOAD_I]], 2.000000e+00
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; CHECK-NEXT: store float [[ADD_I]], ptr [[B_IDX_I]], align 4
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[A1]])
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; CHECK-NEXT: [[CALLER_LOAD:%.*]] = load float, ptr [[B]], align 4
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; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds float, ptr [[A]], i64 7
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; CHECK-NEXT: store float [[CALLER_LOAD]], ptr [[ARRAYIDX]], align 4
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; CHECK-NEXT: ret void
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;
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entry:
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call void @byval_callee(ptr byval(float) align 128 %a, ptr %b)
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%caller.load = load float, ptr %b, align 4
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%arrayidx = getelementptr inbounds float, ptr %a, i64 7
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store float %caller.load, ptr %arrayidx, align 4
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ret void
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}
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attributes #0 = { nounwind uwtable }
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