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https://github.com/c64scene-ar/llvm-6502.git
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43141a0764
For pointer-typed function arguments, enhanced alignment can be asserted using the 'align' attribute. When inlining, if this enhanced alignment information is not otherwise available, preserve it using @llvm.assume-based alignment assumptions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219876 91177308-0d34-0410-b5e6-96231b3b80d8
99 lines
3.8 KiB
LLVM
99 lines
3.8 KiB
LLVM
; RUN: opt -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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define void @hello(float* align 128 nocapture %a, float* nocapture readonly %c) #0 {
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entry:
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%0 = load float* %c, align 4
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%arrayidx = getelementptr inbounds float* %a, i64 5
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store float %0, float* %arrayidx, align 4
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ret void
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}
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define void @foo(float* nocapture %a, float* nocapture readonly %c) #0 {
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entry:
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tail call void @hello(float* %a, float* %c)
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%0 = load float* %c, align 4
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%arrayidx = getelementptr inbounds float* %a, i64 7
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store float %0, float* %arrayidx, align 4
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ret void
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}
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; CHECK: define void @foo(float* nocapture %a, float* nocapture readonly %c) #0 {
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; CHECK: entry:
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; CHECK: %ptrint = ptrtoint float* %a to i64
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; CHECK: %maskedptr = and i64 %ptrint, 127
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; CHECK: %maskcond = icmp eq i64 %maskedptr, 0
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; CHECK: call void @llvm.assume(i1 %maskcond)
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; CHECK: %0 = load float* %c, align 4
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; CHECK: %arrayidx.i = getelementptr inbounds float* %a, i64 5
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; CHECK: store float %0, float* %arrayidx.i, align 4
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; CHECK: %1 = load float* %c, align 4
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; CHECK: %arrayidx = getelementptr inbounds float* %a, i64 7
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; CHECK: store float %1, float* %arrayidx, align 4
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; CHECK: ret void
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; CHECK: }
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define void @fooa(float* nocapture align 128 %a, float* nocapture readonly %c) #0 {
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entry:
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tail call void @hello(float* %a, float* %c)
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%0 = load float* %c, align 4
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%arrayidx = getelementptr inbounds float* %a, i64 7
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store float %0, float* %arrayidx, align 4
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ret void
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}
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; CHECK: define void @fooa(float* nocapture align 128 %a, float* nocapture readonly %c) #0 {
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; CHECK: entry:
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; CHECK: %0 = load float* %c, align 4
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; CHECK: %arrayidx.i = getelementptr inbounds float* %a, i64 5
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; CHECK: store float %0, float* %arrayidx.i, align 4
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; CHECK: %1 = load float* %c, align 4
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; CHECK: %arrayidx = getelementptr inbounds float* %a, i64 7
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; CHECK: store float %1, float* %arrayidx, align 4
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; CHECK: ret void
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; CHECK: }
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define void @hello2(float* align 128 nocapture %a, float* align 128 nocapture %b, float* nocapture readonly %c) #0 {
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entry:
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%0 = load float* %c, align 4
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%arrayidx = getelementptr inbounds float* %a, i64 5
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store float %0, float* %arrayidx, align 4
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%arrayidx1 = getelementptr inbounds float* %b, i64 8
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store float %0, float* %arrayidx1, align 4
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ret void
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}
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define void @foo2(float* nocapture %a, float* nocapture %b, float* nocapture readonly %c) #0 {
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entry:
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tail call void @hello2(float* %a, float* %b, float* %c)
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%0 = load float* %c, align 4
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%arrayidx = getelementptr inbounds float* %a, i64 7
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store float %0, float* %arrayidx, align 4
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ret void
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}
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; CHECK: define void @foo2(float* nocapture %a, float* nocapture %b, float* nocapture readonly %c) #0 {
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; CHECK: entry:
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; CHECK: %ptrint = ptrtoint float* %a to i64
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; CHECK: %maskedptr = and i64 %ptrint, 127
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; CHECK: %maskcond = icmp eq i64 %maskedptr, 0
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; CHECK: call void @llvm.assume(i1 %maskcond)
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; CHECK: %ptrint1 = ptrtoint float* %b to i64
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; CHECK: %maskedptr2 = and i64 %ptrint1, 127
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; CHECK: %maskcond3 = icmp eq i64 %maskedptr2, 0
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; CHECK: call void @llvm.assume(i1 %maskcond3)
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; CHECK: %0 = load float* %c, align 4
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; CHECK: %arrayidx.i = getelementptr inbounds float* %a, i64 5
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; CHECK: store float %0, float* %arrayidx.i, align 4
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; CHECK: %arrayidx1.i = getelementptr inbounds float* %b, i64 8
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; CHECK: store float %0, float* %arrayidx1.i, align 4
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; CHECK: %1 = load float* %c, align 4
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; CHECK: %arrayidx = getelementptr inbounds float* %a, i64 7
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; CHECK: store float %1, float* %arrayidx, align 4
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; CHECK: ret void
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; CHECK: }
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attributes #0 = { nounwind uwtable }
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