diff options
| -rw-r--r-- | llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp | 2 | ||||
| -rw-r--r-- | llvm/test/CodeGen/ARM/immcost.ll | 21 |
2 files changed, 22 insertions, 1 deletions
diff --git a/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp b/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp index 13c5dc61acd..2d44adc9951 100644 --- a/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp +++ b/llvm/lib/Target/ARM/ARMTargetTransformInfo.cpp @@ -41,7 +41,7 @@ int ARMTTIImpl::getIntImmCost(const APInt &Imm, Type *Ty) { // Thumb1. if (SImmVal >= 0 && SImmVal < 256) return 1; - if ((~ZImmVal < 256) || ARM_AM::isThumbImmShiftedVal(ZImmVal)) + if ((~SImmVal < 256) || ARM_AM::isThumbImmShiftedVal(ZImmVal)) return 2; // Load from constantpool. return 3; diff --git a/llvm/test/CodeGen/ARM/immcost.ll b/llvm/test/CodeGen/ARM/immcost.ll new file mode 100644 index 00000000000..0d50bedfec1 --- /dev/null +++ b/llvm/test/CodeGen/ARM/immcost.ll @@ -0,0 +1,21 @@ +; RUN: llc %s -o - -O1 -debug-only=consthoist 2>&1 | FileCheck %s +; REQUIRES: asserts + +target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32" +target triple = "thumbv6m-apple-ios8.0.0" + +declare void @g(i32) + +; CHECK: Collect constant i32 -3 from call void @g(i32 -3) with cost 2 +define void @f(i1 %cond) { +entry: + call void @g(i32 -3) + br i1 %cond, label %true, label %ret + +true: + call void @g(i32 -3) + br label %ret + +ret: + ret void +} |
