mirror of
https://github.com/RPCS3/llvm.git
synced 2024-12-07 03:28:17 +00:00
d9df501704
register destinations that are tied to source operands. The TargetInstrDescr::findTiedToSrcOperand method silently fails for inline assembly. The existing MachineInstr::isRegReDefinedByTwoAddr was very close to doing what is needed, so this revision makes a few changes to that method and also renames it to isRegTiedToUseOperand (for consistency with the very similar isRegTiedToDefOperand and because it handles both two-address instructions and inline assembly with tied registers). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68714 91177308-0d34-0410-b5e6-96231b3b80d8
15 lines
314 B
LLVM
15 lines
314 B
LLVM
; RUN: llvm-as < %s | llc -march=arm
|
|
; PR3954
|
|
|
|
define void @foo(...) nounwind {
|
|
entry:
|
|
%rr = alloca i32 ; <i32*> [#uses=2]
|
|
%0 = load i32* %rr ; <i32> [#uses=1]
|
|
%1 = call i32 asm "nop", "=r,0"(i32 %0) nounwind ; <i32> [#uses=1]
|
|
store i32 %1, i32* %rr
|
|
br label %return
|
|
|
|
return: ; preds = %entry
|
|
ret void
|
|
}
|