llvm-6502/test/CodeGen/X86/2008-02-20-InlineAsmClobber.ll

; RUN: llc -no-integrated-as < %s | FileCheck %s
; PR2078
; The clobber list says that "ax" is clobbered.  Make sure that eax isn't 
; allocated to the input/output register.
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"
target triple = "i386-apple-darwin8"
@pixels = weak global i32 0		; <i32*> [#uses=2]

define void @test() nounwind  {
entry:
	%tmp = load i32* @pixels, align 4		; <i32> [#uses=1]
	%tmp1 = tail call i32 asm sideeffect "a: $0 $1", "=r,0,~{dirflag},~{fpsr},~{flags},~{ax}"( i32 %tmp ) nounwind 		; <i32> [#uses=1]
	store i32 %tmp1, i32* @pixels, align 4
	ret void
}

; CHECK: a:
; CHECK-NOT: ax
; CHECK: {{$}}

define void @test2(i16* %block, i8* %pixels, i32 %line_size) nounwind  {
entry:
	%tmp1 = getelementptr i16* %block, i32 64		; <i16*> [#uses=1]
	%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]
	ret void
}

; CHECK: b:
; CHECK-NOT: ax
; CHECK: {{$}}
Re-commit: Demote EmitRawText call in AsmPrinter::EmitInlineAsm() and remove hasRawTextSupport() call 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. Changes since review (and last commit attempt): - Fixed test failures that were missed due to configuration of local build. (fixes crash.ll and a couple others). - Fixed tests that happened to pass because the local build was on X86 (should fix 2007-12-17-InvokeAsm.ll) - mature-mc-support.ll's should no longer require all targets to be compiled. (should fix ARM and PPC buildbots) - Object output (-filetype=obj and similar) now forces the integrated assembler to be enabled regardless of default setting or -no-integrated-as. (should fix SystemZ buildbots) 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@201333 91177308-0d34-0410-b5e6-96231b3b80d8 2014-02-13 14:44:26 +00:00			`; RUN: llc -no-integrated-as < %s \| FileCheck %s`
Fix a (harmless) but where vregs were added to the used reg lists for inline asms. Fix PR2078 by marking aliases of registers used when a register is marked used. This prevents EAX from being allocated when AX is listed in the clobber set for the asm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47426 91177308-0d34-0410-b5e6-96231b3b80d8 2008-02-21 04:55:52 +00:00			`; PR2078`
			`; The clobber list says that "ax" is clobbered. Make sure that eax isn't`
			`; allocated to the input/output register.`
			`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"`
			`target triple = "i386-apple-darwin8"`
			`@pixels = weak global i32 0 ; <i32*> [#uses=2]`

			`define void @test() nounwind {`
			`entry:`
			`%tmp = load i32* @pixels, align 4 ; <i32> [#uses=1]`
Treat clobber operands like early clobbers: if we have any, we force sdisel to do all regalloc for an asm. This leads to gross but correct codegen. This fixes the rest of PR2078. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47454 91177308-0d34-0410-b5e6-96231b3b80d8 2008-02-21 19:43:13 +00:00			`%tmp1 = tail call i32 asm sideeffect "a: $0 $1", "=r,0,~{dirflag},~{fpsr},~{flags},~{ax}"( i32 %tmp ) nounwind ; <i32> [#uses=1]`
Fix a (harmless) but where vregs were added to the used reg lists for inline asms. Fix PR2078 by marking aliases of registers used when a register is marked used. This prevents EAX from being allocated when AX is listed in the clobber set for the asm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47426 91177308-0d34-0410-b5e6-96231b3b80d8 2008-02-21 04:55:52 +00:00			`store i32 %tmp1, i32* @pixels, align 4`
			`ret void`
			`}`
Treat clobber operands like early clobbers: if we have any, we force sdisel to do all regalloc for an asm. This leads to gross but correct codegen. This fixes the rest of PR2078. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47454 91177308-0d34-0410-b5e6-96231b3b80d8 2008-02-21 19:43:13 +00:00
Rewrite some tests with FileCHeck in X86 codegen - Revise previous patches of the same purpose by fixing ) grep <PA> \| not grep <PB> semantically is not the same as CHECK: <PA>{{^<PB>.$}} as the former will check all occurrences of <PA> while the later only check the first match. As the result, CHECK needs putting in all place where <PA> occurs. *) grep <PA> \| count <N> needs a final CHECK-NOT of the same pattern. (As 'CHECK-<N>' is proposed for discussion, converting 'grep \| count <N>' where N > 1 is postponed.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180742 91177308-0d34-0410-b5e6-96231b3b80d8 2013-04-29 22:41:29 +00:00			`; CHECK: a:`
			`; CHECK-NOT: ax`
			`; CHECK: {{$}}`

Treat clobber operands like early clobbers: if we have any, we force sdisel to do all regalloc for an asm. This leads to gross but correct codegen. This fixes the rest of PR2078. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47454 91177308-0d34-0410-b5e6-96231b3b80d8 2008-02-21 19:43:13 +00:00			`define void @test2(i16* %block, i8* %pixels, i32 %line_size) nounwind {`
			`entry:`
			`%tmp1 = getelementptr i16* %block, i32 64 ; <i16*> [#uses=1]`
			`%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]`
			`ret void`
			`}`

Rewrite some tests with FileCHeck in X86 codegen - Revise previous patches of the same purpose by fixing ) grep <PA> \| not grep <PB> semantically is not the same as CHECK: <PA>{{^<PB>.$}} as the former will check all occurrences of <PA> while the later only check the first match. As the result, CHECK needs putting in all place where <PA> occurs. *) grep <PA> \| count <N> needs a final CHECK-NOT of the same pattern. (As 'CHECK-<N>' is proposed for discussion, converting 'grep \| count <N>' where N > 1 is postponed.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180742 91177308-0d34-0410-b5e6-96231b3b80d8 2013-04-29 22:41:29 +00:00			`; CHECK: b:`
			`; CHECK-NOT: ax`
			`; CHECK: {{$}}`