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7a3a160940
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 llvm-svn: 201333
44 lines
1.3 KiB
LLVM
44 lines
1.3 KiB
LLVM
; RUN: llc < %s -march=thumb -no-integrated-as
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; Test Thumb-mode "I" constraint, for ADD immediate.
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define i32 @testI(i32 %x) {
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%y = call i32 asm "add $0, $1, $2", "=r,r,I"( i32 %x, i32 255 ) nounwind
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ret i32 %y
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}
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; Test Thumb-mode "J" constraint, for negated ADD immediates.
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define void @testJ() {
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tail call void asm sideeffect ".word $0", "J"( i32 -255 ) nounwind
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ret void
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}
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; Test Thumb-mode "K" constraint, for compatibility with GCC's internal use.
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define void @testK() {
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tail call void asm sideeffect ".word $0", "K"( i32 65280 ) nounwind
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ret void
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}
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; Test Thumb-mode "L" constraint, for 3-operand ADD immediates.
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define i32 @testL(i32 %x) {
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%y = call i32 asm "add $0, $1, $2", "=r,r,L"( i32 %x, i32 -7 ) nounwind
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ret i32 %y
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}
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; Test Thumb-mode "M" constraint, for "ADD r = sp + imm".
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define i32 @testM() {
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%y = call i32 asm "add $0, sp, $1", "=r,M"( i32 1020 ) nounwind
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ret i32 %y
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}
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; Test Thumb-mode "N" constraint, for values between 0 and 31.
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define i32 @testN(i32 %x) {
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%y = call i32 asm "lsl $0, $1, $2", "=r,r,N"( i32 %x, i32 31 ) nounwind
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ret i32 %y
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}
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; Test Thumb-mode "O" constraint, for "ADD sp = sp + imm".
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define void @testO() {
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tail call void asm sideeffect "add sp, sp, $0; add sp, sp, $1", "O,O"( i32 -508, i32 508 ) nounwind
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ret void
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}
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