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| author | Eric Christopher <echristo@apple.com> | 2012-05-07 06:25:02 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@apple.com> | 2012-05-07 06:25:02 +0000 |
| commit | 54412a789a35386e11612739dd3b30ab382e5127 (patch) | |
| tree | 20094bb7623a578d4e22728bcf03956d53de8c03 | |
| parent | 86062e6782798cb52a79fce22c1e4371148f120d (diff) | |
| download | llvm-54412a789a35386e11612739dd3b30ab382e5127.tar.gz llvm-54412a789a35386e11612739dd3b30ab382e5127.tar.bz2 llvm-54412a789a35386e11612739dd3b30ab382e5127.tar.xz | |
Add support for the 'P' constraint.
Patch by Jack Carter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156292 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/Mips/MipsISelLowering.cpp | 11 | ||||
| -rw-r--r-- | test/CodeGen/Mips/inlineasm-cnstrnt-bad-P.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 97a0ef6736..910416fe5c 100644 --- a/lib/Target/Mips/MipsISelLowering.cpp +++ b/lib/Target/Mips/MipsISelLowering.cpp @@ -3045,6 +3045,7 @@ MipsTargetLowering::getSingleConstraintMatchWeight( 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) + case 'P': // immediate in the range of 65535 to 1 (inclusive) if (isa<ConstantInt>(CallOperandVal)) weight = CW_Constant; break; @@ -3157,6 +3158,16 @@ void MipsTargetLowering::LowerAsmOperandForConstraint(SDValue Op, } } return; + case 'P': // immediate in the range of 1 to 65535 (inclusive) + if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Op)) { + EVT Type = Op.getValueType(); + int64_t Val = C->getSExtValue(); + if ((Val <= 65535) && (Val >= 1)) { + Result = DAG.getTargetConstant(Val, Type); + break; + } + } + return; } if (Result.getNode()) { diff --git a/test/CodeGen/Mips/inlineasm-cnstrnt-bad-P.ll b/test/CodeGen/Mips/inlineasm-cnstrnt-bad-P.ll new file mode 100644 index 0000000000..0a4739ebb9 --- /dev/null +++ b/test/CodeGen/Mips/inlineasm-cnstrnt-bad-P.ll @@ -0,0 +1,16 @@ +; +; This is a negative test. The constant value given for the constraint (P). +; A constant in the range of 1 to 655535 inclusive. +; Our example uses the positive value 655536. +; +; 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 'P' + + tail call i32 asm sideeffect "addi $0,$1,$2", "=r,r,P"(i32 undef, i32 655536) nounwind + ret i32 0 +} diff --git a/test/CodeGen/Mips/inlineasm_constraint.ll b/test/CodeGen/Mips/inlineasm_constraint.ll index cb02dd149f..97a56780bb 100644 --- a/test/CodeGen/Mips/inlineasm_constraint.ll +++ b/test/CodeGen/Mips/inlineasm_constraint.ll @@ -45,5 +45,11 @@ entry: ; CHECK: #NO_APP tail call i32 asm sideeffect "addi $0,$1,$2", "=r,r,O"(i32 7, i16 -3) nounwind +; Now P with 65535 +; CHECK: #APP +; CHECK: addi ${{[0-9]+}},${{[0-9]+}},65535 +; CHECK: #NO_APP + tail call i32 asm sideeffect "addi $0,$1,$2", "=r,r,P"(i32 7, i32 65535) nounwind + ret i32 0 } |