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57edb9588b
Summary: AsmPrinter::EmitInlineAsm() will no longer use the EmitRawText() call for targets with mature MC support. Such targets will always parse the inline assembly (even when emitting assembly). Targets without mature MC support continue to use EmitRawText() for assembly output. The hasRawTextSupport() check in AsmPrinter::EmitInlineAsm() has been replaced with MCAsmInfo::UseIntegratedAs which when true, causes the integrated assembler to parse inline assembly (even when emitting assembly output). UseIntegratedAs is set to true for targets that consider any failure to parse valid assembly to be a bug. Target specific subclasses generally enable the integrated assembler in their constructor. The default value can be overridden with -no-integrated-as. All tests that rely on inline assembly supporting invalid assembly (for example, those that use mnemonics such as 'foo' or 'hello world') have been updated to disable the integrated assembler. Reviewers: rafael Reviewed By: rafael CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D2686 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201237 91177308-0d34-0410-b5e6-96231b3b80d8
31 lines
1.1 KiB
LLVM
31 lines
1.1 KiB
LLVM
; RUN: llc -no-integrated-as < %s | FileCheck %s
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; PR2078
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; The clobber list says that "ax" is clobbered. Make sure that eax isn't
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; allocated to the input/output register.
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target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
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target triple = "i386-apple-darwin8"
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@pixels = weak global i32 0 ; <i32*> [#uses=2]
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define void @test() nounwind {
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entry:
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%tmp = load i32* @pixels, align 4 ; <i32> [#uses=1]
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%tmp1 = tail call i32 asm sideeffect "a: $0 $1", "=r,0,~{dirflag},~{fpsr},~{flags},~{ax}"( i32 %tmp ) nounwind ; <i32> [#uses=1]
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store i32 %tmp1, i32* @pixels, align 4
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ret void
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}
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; CHECK: a:
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; CHECK-NOT: ax
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; CHECK: {{$}}
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define void @test2(i16* %block, i8* %pixels, i32 %line_size) nounwind {
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entry:
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%tmp1 = getelementptr i16* %block, i32 64 ; <i16*> [#uses=1]
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%tmp3 = tail call i8* asm sideeffect "b: $0 $1 $2", "=r,r,0,~{dirflag},~{fpsr},~{flags},~{ax}"( i16* %tmp1, i8* %pixels ) nounwind ; <i8*> [#uses=0]
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ret void
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}
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; CHECK: b:
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; CHECK-NOT: ax
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; CHECK: {{$}}
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