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Handle 'a' modifier in ARM inline assembly.

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Patch by Richard Pennington.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68464 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson 2009-04-06 21:46:51 +00:00
parent 30910bf1c9
commit 8f3434647d
2 changed files with 22 additions and 0 deletions
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3
lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
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@ -739,7 +739,10 @@ bool ARMAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
switch (ExtraCode[0]) {
default: return true; // Unknown modifier.
case 'a': // Don't print "#" before a global var name or constant.
case 'c': // Don't print "$" before a global var name or constant.
printOperand(MI, OpNo, "no_hash");
return false;
case 'P': // Print a VFP double precision register.
printOperand(MI, OpNo);
return false;

19
test/CodeGen/ARM/2009-04-06-AsmModifier.ll Normal file
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@ -0,0 +1,19 @@
; RUN: llvm-as < %s | llc -march=arm | grep {swi 107}
define i32 @_swilseek(i32) nounwind {
entry:
%ptr = alloca i32 ; <i32*> [#uses=2]
store i32 %0, i32* %ptr
%retval = alloca i32 ; <i32*> [#uses=2]
store i32 0, i32* %retval
%res = alloca i32 ; <i32*> [#uses=0]
%fh = alloca i32 ; <i32*> [#uses=1]
%1 = load i32* %fh ; <i32> [#uses=1]
%2 = load i32* %ptr ; <i32> [#uses=1]
%3 = call i32* asm "mov r0, $2; mov r1, $3; swi ${1:a}; mov $0, r0", "=r,i,r,r,~{r0},~{r1}"(i32 107, i32 %1, i32 %2) nounwind ; <i32*> [#uses=0]
br label %return
return: ; preds = %entry
%4 = load i32* %retval ; <i32> [#uses=1]
ret i32 %4
}