llvm/test/CodeGen/ARM/inlineasm-imm-arm.ll
Daniel Sanders 57edb9588b 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.

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
2014-02-12 14:44:54 +00:00

32 lines
953 B
LLVM

; RUN: llc < %s -march=arm -no-integrated-as
; Test ARM-mode "I" constraint, for any Data Processing immediate.
define i32 @testI(i32 %x) {
%y = call i32 asm "add $0, $1, $2", "=r,r,I"( i32 %x, i32 65280 ) nounwind
ret i32 %y
}
; Test ARM-mode "J" constraint, for compatibility with unknown use in GCC.
define void @testJ() {
tail call void asm sideeffect ".word $0", "J"( i32 4080 ) nounwind
ret void
}
; Test ARM-mode "K" constraint, for bitwise inverted Data Processing immediates.
define void @testK() {
tail call void asm sideeffect ".word $0", "K"( i32 16777215 ) nounwind
ret void
}
; Test ARM-mode "L" constraint, for negated Data Processing immediates.
define void @testL() {
tail call void asm sideeffect ".word $0", "L"( i32 -65280 ) nounwind
ret void
}
; Test ARM-mode "M" constraint, for value between 0 and 32.
define i32 @testM(i32 %x) {
%y = call i32 asm "lsl $0, $1, $2", "=r,r,M"( i32 %x, i32 31 ) nounwind
ret i32 %y
}