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| author | Eric Christopher <echristo@apple.com> | 2012-05-07 05:46:48 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2012-05-07 05:46:48 +0000 |
| commit | 1ce2034e43b94abb9930fd86430c46c0bf309ed7 (patch) | |
| tree | c9fce329e39557e2aa00395978bc4ee97efaeae1 | |
| parent | 60cfc7908ef6acdfab0ea4af5b2c50087a8f36d8 (diff) | |
| download | llvm-1ce2034e43b94abb9930fd86430c46c0bf309ed7.tar.gz llvm-1ce2034e43b94abb9930fd86430c46c0bf309ed7.tar.bz2 llvm-1ce2034e43b94abb9930fd86430c46c0bf309ed7.tar.xz | |
Add support for the 'O' constraint.
Patch by Jack Carter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156285 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/Mips/MipsISelLowering.cpp | 11 | ||||
| -rw-r--r-- | test/CodeGen/Mips/inlineasm-cnstrnt-bad-O.ll | 16 | ||||
| -rw-r--r-- | test/CodeGen/Mips/inlineasm_constraint.ll | 6 |
3 files changed, 33 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp index ded6aa0608..97a0ef6736 100644 --- a/lib/Target/Mips/MipsISelLowering.cpp +++ b/lib/Target/Mips/MipsISelLowering.cpp @@ -3044,6 +3044,7 @@ MipsTargetLowering::getSingleConstraintMatchWeight( case 'K': // unsigned 16 bit immediate case 'L': // signed 32 bit immediate where lower 16 bits are 0 case 'N': // immediate in the range of -65535 to -1 (inclusive) + case 'O': // signed 15 bit immediate (+- 16383) if (isa<ConstantInt>(CallOperandVal)) weight = CW_Constant; break; @@ -3146,6 +3147,16 @@ void MipsTargetLowering::LowerAsmOperandForConstraint(SDValue Op, } } return; + case 'O': // signed 15 bit immediate + if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Op)) { + EVT Type = Op.getValueType(); + int64_t Val = C->getSExtValue(); + if ((isInt<15>(Val))) { + Result = DAG.getTargetConstant(Val, Type); + break; + } + } + return; } if (Result.getNode()) { diff --git a/test/CodeGen/Mips/inlineasm-cnstrnt-bad-O.ll b/test/CodeGen/Mips/inlineasm-cnstrnt-bad-O.ll new file mode 100644 index 0000000000..cd4431ac52 --- /dev/null +++ b/test/CodeGen/Mips/inlineasm-cnstrnt-bad-O.ll @@ -0,0 +1,16 @@ +; +;This is a negative test. The constant value given for the constraint (O). +;signed 15 bit immediate (+- 16383). +;Our example uses the positive value 16384. +; +; 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 'O' + + tail call i32 asm sideeffect "addi $0,$1,$2", "=r,r,O"(i32 undef, i32 16384) nounwind + ret i32 0 +} diff --git a/test/CodeGen/Mips/inlineasm_constraint.ll b/test/CodeGen/Mips/inlineasm_constraint.ll index 06ca7219fe..cb02dd149f 100644 --- a/test/CodeGen/Mips/inlineasm_constraint.ll +++ b/test/CodeGen/Mips/inlineasm_constraint.ll @@ -39,5 +39,11 @@ entry: ; CHECK: #NO_APP tail call i32 asm sideeffect "addi $0,$1,$2", "=r,r,N"(i32 7, i32 -3) nounwind +; Now O with -3 +; CHECK: #APP +; CHECK: addi ${{[0-9]+}},${{[0-9]+}},-3 +; CHECK: #NO_APP + tail call i32 asm sideeffect "addi $0,$1,$2", "=r,r,O"(i32 7, i16 -3) nounwind + ret i32 0 } |