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a72e83c26e
For historic reasons, the behavior of .align differs between targets. Fortunately, there are alternatives, .p2align and .balign, which make the interpretation of the parameter explicit, and which behave consistently across targets. This patch teaches MC to use .p2align instead of .align, so that people reading code for multiple architectures don't have to remember which way each platform does its .align directive. Differential Revision: http://reviews.llvm.org/D16549 llvm-svn: 258750
111 lines
3.2 KiB
LLVM
111 lines
3.2 KiB
LLVM
; RUN: llc -mcpu=ppc64 < %s | FileCheck %s -check-prefix=GENERIC
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; RUN: llc -mcpu=970 < %s | FileCheck %s -check-prefix=PWR
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; RUN: llc -mcpu=a2 < %s | FileCheck %s -check-prefix=BASIC
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; RUN: llc -mcpu=e500mc < %s | FileCheck %s -check-prefix=BASIC
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; RUN: llc -mcpu=e5500 < %s | FileCheck %s -check-prefix=BASIC
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; RUN: llc -mcpu=pwr4 < %s | FileCheck %s -check-prefix=PWR
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; RUN: llc -mcpu=pwr5 < %s | FileCheck %s -check-prefix=PWR
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; RUN: llc -mcpu=pwr5x < %s | FileCheck %s -check-prefix=PWR
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; RUN: llc -mcpu=pwr6 < %s | FileCheck %s -check-prefix=PWR
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; RUN: llc -mcpu=pwr6x < %s | FileCheck %s -check-prefix=PWR
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; RUN: llc -mcpu=pwr7 < %s | FileCheck %s -check-prefix=PWR
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; RUN: llc -mcpu=pwr8 < %s | FileCheck %s -check-prefix=PWR
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target datalayout = "E-m:e-i64:64-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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; Function Attrs: nounwind readnone
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define signext i32 @foo(i32 signext %x) #0 {
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entry:
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%mul = shl nsw i32 %x, 1
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ret i32 %mul
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; GENERIC-LABEL: .globl foo
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; BASIC-LABEL: .globl foo
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; PWR-LABEL: .globl foo
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; GENERIC: .p2align 2
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; BASIC: .p2align 4
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; PWR: .p2align 4
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; GENERIC: @foo
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; BASIC: @foo
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; PWR: @foo
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}
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; Function Attrs: nounwind
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define void @loop(i32 signext %x, i32* nocapture %a) #1 {
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entry:
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br label %vector.body
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; GENERIC-LABEL: @loop
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; BASIC-LABEL: @loop
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; PWR-LABEL: @loop
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; GENERIC: mtctr
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; BASIC: mtctr
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; PWR: mtctr
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; GENERIC-NOT: .p2align
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; BASIC: .p2align 4
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; PWR: .p2align 4
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; GENERIC: lwzu
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; BASIC: lwzu
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; PWR: lwzu
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; GENERIC: bdnz
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; BASIC: bdnz
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; PWR: bdnz
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vector.body: ; preds = %vector.body, %entry
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%index = phi i64 [ 0, %entry ], [ %index.next, %vector.body ]
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%induction45 = or i64 %index, 1
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%0 = getelementptr inbounds i32, i32* %a, i64 %index
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%1 = getelementptr inbounds i32, i32* %a, i64 %induction45
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%2 = load i32, i32* %0, align 4
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%3 = load i32, i32* %1, align 4
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%4 = add nsw i32 %2, 4
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%5 = add nsw i32 %3, 4
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%6 = mul nsw i32 %4, 3
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%7 = mul nsw i32 %5, 3
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store i32 %6, i32* %0, align 4
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store i32 %7, i32* %1, align 4
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%index.next = add i64 %index, 2
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%8 = icmp eq i64 %index.next, 2048
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br i1 %8, label %for.end, label %vector.body
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for.end: ; preds = %vector.body
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ret void
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}
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; Function Attrs: nounwind
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define void @sloop(i32 signext %x, i32* nocapture %a) #1 {
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entry:
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br label %for.body
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; GENERIC-LABEL: @sloop
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; BASIC-LABEL: @sloop
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; PWR-LABEL: @sloop
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; GENERIC: mtctr
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; BASIC: mtctr
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; PWR: mtctr
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; GENERIC-NOT: .p2align
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; BASIC: .p2align 4
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; PWR: .p2align 5
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; GENERIC: bdnz
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; BASIC: bdnz
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; PWR: bdnz
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for.body: ; preds = %for.body, %entry
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv
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%0 = load i32, i32* %arrayidx, align 4
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%add = add nsw i32 %0, 4
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%mul = mul nsw i32 %add, 3
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store i32 %mul, i32* %arrayidx, align 4
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
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%exitcond = icmp eq i64 %indvars.iv.next, 2048
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br i1 %exitcond, label %for.end, label %for.body
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for.end: ; preds = %for.body
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ret void
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}
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attributes #0 = { nounwind readnone }
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attributes #1 = { nounwind }
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