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| author | Dimitry Andric <dim@FreeBSD.org> | 2015-08-07 23:01:33 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2015-08-07 23:01:33 +0000 |
| commit | ee8648bdac07986a0f1ec897b02ec82a2f144d46 (patch) | |
| tree | 52d1861acda1205241ee35a94aa63129c604d469 /test/CodeGen/ARM/ldrd.ll | |
| parent | 1a82d4c088707c791c792f6822f611b47a12bdfe (diff) | |
Vendor import of llvm trunk r242221:vendor/llvm/llvm-trunk-r242221
Notes
svn path=/vendor/llvm/dist/; revision=286425
svn path=/vendor/llvm/llvm-trunk-r242221/; revision=286426; tag=vendor/llvm/llvm-trunk-r242221
Diffstat (limited to 'test/CodeGen/ARM/ldrd.ll')
| -rw-r--r-- | test/CodeGen/ARM/ldrd.ll | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/ldrd.ll b/test/CodeGen/ARM/ldrd.ll index f3e13671ac37..56cdcaedf900 100644 --- a/test/CodeGen/ARM/ldrd.ll +++ b/test/CodeGen/ARM/ldrd.ll @@ -3,6 +3,7 @@ ; rdar://6949835 ; RUN: llc < %s -mtriple=thumbv7-apple-ios -mcpu=cortex-a8 -regalloc=basic | FileCheck %s -check-prefix=BASIC -check-prefix=CHECK ; RUN: llc < %s -mtriple=thumbv7-apple-ios -mcpu=cortex-a8 -regalloc=greedy | FileCheck %s -check-prefix=GREEDY -check-prefix=CHECK +; RUN: llc < %s -mtriple=thumbv7-apple-ios -mcpu=swift | FileCheck %s -check-prefix=SWIFT -check-prefix=CHECK ; Magic ARM pair hints works best with linearscan / fast. @@ -110,5 +111,73 @@ entry: ret void } +; CHECK-LABEL: strd_spill_ldrd_reload: +; A8: strd r1, r0, [sp, #-8]! +; M3: strd r1, r0, [sp, #-8]! +; BASIC: strd r1, r0, [sp, #-8]! +; GREEDY: strd r0, r1, [sp, #-8]! +; CHECK: @ InlineAsm Start +; CHECK: @ InlineAsm End +; A8: ldrd r2, r1, [sp] +; M3: ldrd r2, r1, [sp] +; BASIC: ldrd r2, r1, [sp] +; GREEDY: ldrd r1, r2, [sp] +; CHECK: bl{{x?}} _extfunc +define void @strd_spill_ldrd_reload(i32 %v0, i32 %v1) { + ; force %v0 and %v1 to be spilled + call void asm sideeffect "", "~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{lr}"() + ; force the reloaded %v0, %v1 into different registers + call void @extfunc(i32 0, i32 %v0, i32 %v1, i32 7) + ret void +} + +declare void @extfunc2(i32*, i32, i32) + +; CHECK-LABEL: ldrd_postupdate_dec: +; CHECK: ldrd r1, r2, [r0], #-8 +; CHECK-NEXT: bl{{x?}} _extfunc +define void @ldrd_postupdate_dec(i32* %p0) { + %p0.1 = getelementptr i32, i32* %p0, i32 1 + %v0 = load i32, i32* %p0 + %v1 = load i32, i32* %p0.1 + %p1 = getelementptr i32, i32* %p0, i32 -2 + call void @extfunc2(i32* %p1, i32 %v0, i32 %v1) + ret void +} + +; CHECK-LABEL: ldrd_postupdate_inc: +; CHECK: ldrd r1, r2, [r0], #8 +; CHECK-NEXT: bl{{x?}} _extfunc +define void @ldrd_postupdate_inc(i32* %p0) { + %p0.1 = getelementptr i32, i32* %p0, i32 1 + %v0 = load i32, i32* %p0 + %v1 = load i32, i32* %p0.1 + %p1 = getelementptr i32, i32* %p0, i32 2 + call void @extfunc2(i32* %p1, i32 %v0, i32 %v1) + ret void +} + +; CHECK-LABEL: strd_postupdate_dec: +; CHECK: strd r1, r2, [r0], #-8 +; CHECK-NEXT: bx lr +define i32* @strd_postupdate_dec(i32* %p0, i32 %v0, i32 %v1) { + %p0.1 = getelementptr i32, i32* %p0, i32 1 + store i32 %v0, i32* %p0 + store i32 %v1, i32* %p0.1 + %p1 = getelementptr i32, i32* %p0, i32 -2 + ret i32* %p1 +} + +; CHECK-LABEL: strd_postupdate_inc: +; CHECK: strd r1, r2, [r0], #8 +; CHECK-NEXT: bx lr +define i32* @strd_postupdate_inc(i32* %p0, i32 %v0, i32 %v1) { + %p0.1 = getelementptr i32, i32* %p0, i32 1 + store i32 %v0, i32* %p0 + store i32 %v1, i32* %p0.1 + %p1 = getelementptr i32, i32* %p0, i32 2 + ret i32* %p1 +} + declare void @llvm.lifetime.start(i64, i8* nocapture) nounwind declare void @llvm.lifetime.end(i64, i8* nocapture) nounwind |