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https://github.com/RPCS3/llvm-mirror.git
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6655b5e078
Summary: A number of optimizations are inhibited by single-use TokenFactors not being merged into the TokenFactor using it. This makes we consider if we can do the merge immediately. Most tests changes here are due to the change in visitation causing minor reorderings and associated reassociation of paired memory operations. CodeGen tests with non-reordering changes: X86/aligned-variadic.ll -- memory-based add folded into stored leaq value. X86/constant-combiners.ll -- Optimizes out overlap between stores. X86/pr40631_deadstore_elision -- folds constant byte store into preceding quad word constant store. Reviewers: RKSimon, craig.topper, spatel, efriedma, courbet Reviewed By: courbet Subscribers: dylanmckay, sdardis, nemanjai, jvesely, nhaehnle, javed.absar, eraman, hiraditya, kbarton, jrtc27, atanasyan, jsji, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D59260 llvm-svn: 356068
116 lines
2.7 KiB
LLVM
116 lines
2.7 KiB
LLVM
; RUN: llc -mtriple=arm-linux-gnueabihf < %s | FileCheck %s
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%struct4bytes = type { i32 }
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%struct8bytes8align = type { i64 }
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%struct12bytes = type { i32, i32, i32 }
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declare void @useIntPtr(%struct4bytes*)
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declare void @useLong(i64)
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declare void @usePtr(%struct8bytes8align*)
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; a -> r0
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; b -> r1..r3
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; c -> sp+0..sp+7
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define void @foo1(i32 %a, %struct12bytes* byval %b, i64 %c) {
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; CHECK-LABEL: foo1
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; CHECK: sub sp, sp, #12
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; CHECK: push {r11, lr}
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; CHECK: sub sp, sp, #4
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; CHECK: add [[SCRATCH:r[0-9]+]], sp, #12
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; CHECK: stm [[SCRATCH]], {r1, r2, r3}
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; CHECK: ldr r0, [sp, #24]
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; CHECK: ldr r1, [sp, #28]
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; CHECK: bl useLong
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; CHECK: pop {r11, lr}
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; CHECK: add sp, sp, #12
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call void @useLong(i64 %c)
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ret void
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}
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; a -> r0
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; b -> r2..r3
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define void @foo2(i32 %a, %struct8bytes8align* byval %b) {
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; CHECK-LABEL: foo2
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; CHECK: sub sp, sp, #8
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; CHECK: push {r11, lr}
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; CHECK: add r0, sp, #8
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; CHECK-DAG: str r3, [sp, #12]
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; CHECK-DAG: str r2, [sp, #8]
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; CHECK: bl usePtr
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; CHECK: pop {r11, lr}
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; CHECK: add sp, sp, #8
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call void @usePtr(%struct8bytes8align* %b)
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ret void
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}
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; a -> r0..r1
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; b -> r2
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define void @foo3(%struct8bytes8align* byval %a, %struct4bytes* byval %b) {
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; CHECK-LABEL: foo3
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; CHECK: sub sp, sp, #16
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; CHECK: push {r11, lr}
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; CHECK: add [[SCRATCH:r[0-9]+]], sp, #8
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; CHECK: stm [[SCRATCH]], {r0, r1, r2}
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; CHECK: add r0, sp, #8
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; CHECK: bl usePtr
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; CHECK: pop {r11, lr}
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; CHECK: add sp, sp, #16
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call void @usePtr(%struct8bytes8align* %a)
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ret void
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}
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; a -> r0
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; b -> r2..r3
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define void @foo4(%struct4bytes* byval %a, %struct8bytes8align* byval %b) {
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; CHECK-LABEL: foo4
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; CHECK: sub sp, sp, #16
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; CHECK: push {r11, lr}
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; CHECK: str r0, [sp, #8]
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; CHECK: add r0, sp, #16
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; CHECK-DAG: str r3, [sp, #20]
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; CHECK-DAG: str r2, [sp, #16]
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; CHECK: bl usePtr
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; CHECK: pop {r11, lr}
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; CHECK: add sp, sp, #16
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; CHECK: mov pc, lr
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call void @usePtr(%struct8bytes8align* %b)
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ret void
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}
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; a -> r0..r1
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; b -> r2
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; c -> r3
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define void @foo5(%struct8bytes8align* byval %a, %struct4bytes* byval %b, %struct4bytes* byval %c) {
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; CHECK-LABEL: foo5
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; CHECK: sub sp, sp, #16
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; CHECK: push {r11, lr}
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; CHECK: add [[SCRATCH:r[0-9]+]], sp, #8
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; CHECK: stm [[SCRATCH]], {r0, r1, r2, r3}
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; CHECK: add r0, sp, #8
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; CHECK: bl usePtr
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; CHECK: pop {r11, lr}
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; CHECK: add sp, sp, #16
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; CHECK: mov pc, lr
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call void @usePtr(%struct8bytes8align* %a)
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ret void
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}
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; a..c -> r0..r2
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; d -> sp+0..sp+7
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define void @foo6(i32 %a, i32 %b, i32 %c, %struct8bytes8align* byval %d) {
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; CHECK-LABEL: foo6
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; CHECK: push {r11, lr}
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; CHECK: add r0, sp, #8
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; CHECK: bl usePtr
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; CHECK: pop {r11, lr}
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; CHECK: mov pc, lr
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call void @usePtr(%struct8bytes8align* %d)
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ret void
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}
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