diff options
Diffstat (limited to 'test/CodeGen/PowerPC')
-rw-r--r-- | test/CodeGen/PowerPC/stack-realign.ll | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/stack-realign.ll b/test/CodeGen/PowerPC/stack-realign.ll new file mode 100644 index 0000000..7bd28f6 --- /dev/null +++ b/test/CodeGen/PowerPC/stack-realign.ll @@ -0,0 +1,151 @@ +; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %s | FileCheck %s +; RUN: llc -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 -disable-fp-elim < %s | FileCheck -check-prefix=CHECK-FP %s +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-f128:128:128-v128:128:128-n32:64" +target triple = "powerpc64-unknown-linux-gnu" + +%struct.s = type { i32, i32 } + +declare void @bar(i32*) + +define void @goo(%struct.s* byval nocapture readonly %a) { +entry: + %x = alloca [2 x i32], align 32 + %a1 = getelementptr inbounds %struct.s* %a, i64 0, i32 0 + %0 = load i32* %a1, align 4, !tbaa !0 + %arrayidx = getelementptr inbounds [2 x i32]* %x, i64 0, i64 0 + store i32 %0, i32* %arrayidx, align 32, !tbaa !0 + %b = getelementptr inbounds %struct.s* %a, i64 0, i32 1 + %1 = load i32* %b, align 4, !tbaa !0 + %arrayidx2 = getelementptr inbounds [2 x i32]* %x, i64 0, i64 1 + store i32 %1, i32* %arrayidx2, align 4, !tbaa !0 + call void @bar(i32* %arrayidx) + ret void +} + +; CHECK-LABEL: @goo + +; CHECK-DAG: mflr 0 +; CHECK-DAG: rldicl [[REG:[0-9]+]], 1, 0, 59 +; CHECK-DAG: std 31, -8(1) +; CHECK-DAG: mr 31, 1 +; CHECK-DAG: std 0, 16(1) +; CHECK-DAG: subfic 0, [[REG]], -160 +; CHECK: stdux 1, 1, 0 + +; CHECK: .cfi_offset r31, -8 +; CHECK: .cfi_offset lr, 16 + +; CHECK: std 3, 48(31) + +; CHECK: ld 1, 0(1) +; CHECK-DAG: ld 0, 16(1) +; CHECK-DAG: ld 31, -8(1) +; CHECK-DAG: mtlr 0 +; CHECK: blr + +; CHECK-FP-LABEL: @goo + +; CHECK-FP-DAG: mflr 0 +; CHECK-FP-DAG: rldicl [[REG:[0-9]+]], 1, 0, 59 +; CHECK-FP-DAG: std 31, -8(1) +; CHECK-FP-DAG: std 30, -16(1) +; CHECK-FP-DAG: mr 30, 1 +; CHECK-FP-DAG: std 0, 16(1) +; CHECK-FP-DAG: subfic 0, [[REG]], -160 +; CHECK-FP: stdux 1, 1, 0 + +; CHECK-FP: .cfi_offset r31, -8 +; CHECK-FP: .cfi_offset r30, -16 +; CHECK-FP: .cfi_offset lr, 16 + +; CHECK-FP: mr 31, 1 + +; CHECK-FP: std 3, 48(30) + +; CHECK-FP: ld 1, 0(1) +; CHECK-FP-DAG: ld 0, 16(1) +; CHECK-FP-DAG: ld 31, -8(1) +; CHECK-FP-DAG: ld 30, -16(1) +; CHECK-FP-DAG: mtlr 0 +; CHECK-FP: blr + +; The large-frame-size case. +define void @hoo(%struct.s* byval nocapture readonly %a) { +entry: + %x = alloca [200000 x i32], align 32 + %a1 = getelementptr inbounds %struct.s* %a, i64 0, i32 0 + %0 = load i32* %a1, align 4, !tbaa !0 + %arrayidx = getelementptr inbounds [200000 x i32]* %x, i64 0, i64 0 + store i32 %0, i32* %arrayidx, align 32, !tbaa !0 + %b = getelementptr inbounds %struct.s* %a, i64 0, i32 1 + %1 = load i32* %b, align 4, !tbaa !0 + %arrayidx2 = getelementptr inbounds [200000 x i32]* %x, i64 0, i64 1 + store i32 %1, i32* %arrayidx2, align 4, !tbaa !0 + call void @bar(i32* %arrayidx) + ret void +} + +; CHECK-LABEL: @hoo + +; CHECK-DAG: lis [[REG1:[0-9]+]], -13 +; CHECK-DAG: rldicl [[REG3:[0-9]+]], 1, 0, 59 +; CHECK-DAG: mflr 0 +; CHECK-DAG: ori [[REG2:[0-9]+]], [[REG1]], 51808 +; CHECK-DAG: std 31, -8(1) +; CHECK-DAG: mr 31, 1 +; CHECK-DAG: std 0, 16(1) +; CHECK-DAG: subfc 0, [[REG3]], [[REG2]] +; CHECK: stdux 1, 1, 0 + +; CHECK: blr + +; Make sure that the FP save area is still allocated correctly relative to +; where r30 is saved. +define void @loo(%struct.s* byval nocapture readonly %a) { +entry: + %x = alloca [2 x i32], align 32 + %a1 = getelementptr inbounds %struct.s* %a, i64 0, i32 0 + %0 = load i32* %a1, align 4, !tbaa !0 + %arrayidx = getelementptr inbounds [2 x i32]* %x, i64 0, i64 0 + store i32 %0, i32* %arrayidx, align 32, !tbaa !0 + %b = getelementptr inbounds %struct.s* %a, i64 0, i32 1 + %1 = load i32* %b, align 4, !tbaa !0 + %arrayidx2 = getelementptr inbounds [2 x i32]* %x, i64 0, i64 1 + store i32 %1, i32* %arrayidx2, align 4, !tbaa !0 + call void @bar(i32* %arrayidx) + call void asm sideeffect "", "~{f30}"() nounwind + ret void +} + +; CHECK-LABEL: @loo + +; CHECK-DAG: mflr 0 +; CHECK-DAG: rldicl [[REG:[0-9]+]], 1, 0, 59 +; CHECK-DAG: std 31, -24(1) +; CHECK-DAG: mr 31, 1 +; CHECK-DAG: std 0, 16(1) +; CHECK-DAG: subfic 0, [[REG]], -160 +; CHECK: stdux 1, 1, 0 + +; CHECK: stfd 30, -16(31) + +; CHECK: blr + +; CHECK-FP-LABEL: @loo + +; CHECK-FP-DAG: mflr 0 +; CHECK-FP-DAG: rldicl [[REG:[0-9]+]], 1, 0, 59 +; CHECK-FP-DAG: std 31, -24(1) +; CHECK-FP-DAG: std 30, -32(1) +; CHECK-FP-DAG: mr 30, 1 +; CHECK-FP-DAG: std 0, 16(1) +; CHECK-FP-DAG: subfic 0, [[REG]], -192 +; CHECK-FP: stdux 1, 1, 0 + +; CHECK-FP: stfd 30, -16(30) + +; CHECK-FP: blr + +!0 = metadata !{metadata !"int", metadata !1} +!1 = metadata !{metadata !"omnipotent char", metadata !2} +!2 = metadata !{metadata !"Simple C/C++ TBAA"} |