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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
23 lines
563 B
LLVM
23 lines
563 B
LLVM
; RUN: llc -mcpu=corei7 -mtriple=x86_64-linux -align-all-blocks=16 < %s | FileCheck %s
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;CHECK-LABEL: foo:
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;CHECK: .p2align 16, 0x90
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;CHECK: .p2align 16, 0x90
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;CHECK: .p2align 16, 0x90
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;CHECK: ret
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define i32 @foo(i32 %t, i32 %l) nounwind readnone ssp uwtable {
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%1 = icmp eq i32 %t, 0
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br i1 %1, label %4, label %2
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; <label>:2 ; preds = %0
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%3 = add nsw i32 %t, 2
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ret i32 %3
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; <label>:4 ; preds = %0
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%5 = icmp eq i32 %l, 0
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%. = select i1 %5, i32 0, i32 5
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ret i32 %.
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}
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