diff options
| author | Eric Christopher <echristo@apple.com> | 2012-05-07 03:13:42 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2012-05-07 03:13:42 +0000 |
| commit | 7201e1b4b990b241c0954eec6c4454ca63d99ef6 (patch) | |
| tree | 859a4b269223616dc4ac28e1b33eddbe0b09b76e | |
| parent | 1d6c89eea168e689d504e65c7fb3ad4c0bd4dc8c (diff) | |
| download | bcm5719-llvm-7201e1b4b990b241c0954eec6c4454ca63d99ef6.tar.gz bcm5719-llvm-7201e1b4b990b241c0954eec6c4454ca63d99ef6.zip | |
Support the 'J' constraint.
Patch by Jack Carter.
llvm-svn: 156280
| -rw-r--r-- | llvm/lib/Target/Mips/MipsISelLowering.cpp | 11 | ||||
| -rw-r--r-- | llvm/test/CodeGen/Mips/inlineasm-cnstrnt-bad-J.ll | 16 | ||||
| -rw-r--r-- | llvm/test/CodeGen/Mips/inlineasm_constraint.ll | 6 |
3 files changed, 33 insertions, 0 deletions
diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp index 13665ee89a9..97332cf00d1 100644 --- a/llvm/lib/Target/Mips/MipsISelLowering.cpp +++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp @@ -3040,6 +3040,7 @@ MipsTargetLowering::getSingleConstraintMatchWeight( weight = CW_Register; break; case 'I': // signed 16 bit immediate + case 'J': // integer zero if (isa<ConstantInt>(CallOperandVal)) weight = CW_Constant; break; @@ -3102,6 +3103,16 @@ void MipsTargetLowering::LowerAsmOperandForConstraint(SDValue Op, } } return; + case 'J': // integer zero + if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Op)) { + EVT Type = Op.getValueType(); + int64_t Val = C->getZExtValue(); + if (Val == 0) { + Result = DAG.getTargetConstant(0, Type); + break; + } + } + return; } if (Result.getNode()) { diff --git a/llvm/test/CodeGen/Mips/inlineasm-cnstrnt-bad-J.ll b/llvm/test/CodeGen/Mips/inlineasm-cnstrnt-bad-J.ll new file mode 100644 index 00000000000..1fdf672fe19 --- /dev/null +++ b/llvm/test/CodeGen/Mips/inlineasm-cnstrnt-bad-J.ll @@ -0,0 +1,16 @@ +; +;This is a negative test. The constant value given for the constraint (J) +;is non-zero (3). +; +; RUN: not llc -march=mipsel < %s 2> %t +; RUN: FileCheck --check-prefix=CHECK-ERRORS < %t %s + +define i32 @main() nounwind { +entry: + +;CHECK-ERRORS: error: invalid operand for inline asm constraint 'J' + + tail call i32 asm "addi $0,$1,$2", "=r,r,J"(i32 1024, i32 3) nounwind + ret i32 0 +} + diff --git a/llvm/test/CodeGen/Mips/inlineasm_constraint.ll b/llvm/test/CodeGen/Mips/inlineasm_constraint.ll index e2fbaa772ef..f053e0e2766 100644 --- a/llvm/test/CodeGen/Mips/inlineasm_constraint.ll +++ b/llvm/test/CodeGen/Mips/inlineasm_constraint.ll @@ -15,6 +15,12 @@ entry: ; CHECK: #NO_APP tail call i32 asm sideeffect "addi $0,$1,$2", "=r,r,I"(i32 7, i32 -3) nounwind +; Now J with 0 +; CHECK: #APP +; CHECK: addi ${{[0-9]+}},${{[0-9]+}},0 +; CHECK: #NO_APP + tail call i32 asm sideeffect "addi $0,$1,$2\0A\09 ", "=r,r,J"(i32 7, i16 0) nounwind + ret i32 0 } |
