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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
27 lines
864 B
LLVM
27 lines
864 B
LLVM
; RUN: llc < %s -mcpu=cortex-a8 | FileCheck %s
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target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:32:64-v128:32:128-a0:0:32-n32-S32"
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target triple = "thumbv7-apple-ios"
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; The double in the constant pool is 8-byte aligned, forcing the function
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; alignment.
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; CHECK: .p2align 3
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; CHECK: func
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;
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; Constant pool with 8-byte entry before 4-byte entry:
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; CHECK: .p2align 3
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; CHECK: LCPI
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; CHECK: .long 2370821947
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; CHECK: .long 1080815255
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; CHECK: LCPI
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; CHECK: .long 1123477881
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define void @func(float* nocapture %x, double* nocapture %y) nounwind ssp {
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entry:
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%0 = load float, float* %x, align 4
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%add = fadd float %0, 0x405EDD2F20000000
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store float %add, float* %x, align 4
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%1 = load double, double* %y, align 4
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%add1 = fadd double %1, 2.234560e+02
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store double %add1, double* %y, align 4
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ret void
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}
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