diff options
| -rw-r--r-- | llvm/lib/Target/PowerPC/PPCISelLowering.cpp | 4 | ||||
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/no-pref-jumps.ll | 36 |
2 files changed, 39 insertions, 1 deletions
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp index 7ecfac66b49..15a0818c816 100644 --- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp +++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp @@ -687,8 +687,10 @@ PPCTargetLowering::PPCTargetLowering(const PPCTargetMachine &TM, // With 32 condition bits, we don't need to sink (and duplicate) compares // aggressively in CodeGenPrep. - if (Subtarget.useCRBits()) + if (Subtarget.useCRBits()) { setHasMultipleConditionRegisters(); + setJumpIsExpensive(); + } setMinFunctionAlignment(2); if (Subtarget.isDarwin()) diff --git a/llvm/test/CodeGen/PowerPC/no-pref-jumps.ll b/llvm/test/CodeGen/PowerPC/no-pref-jumps.ll new file mode 100644 index 00000000000..d9490f16e8f --- /dev/null +++ b/llvm/test/CodeGen/PowerPC/no-pref-jumps.ll @@ -0,0 +1,36 @@ +; RUN: llc -mcpu=pwr7 < %s | FileCheck %s +target datalayout = "E-m:e-i64:64-n32:64" +target triple = "powerpc64-unknown-linux-gnu" + +; Function Attrs: nounwind +define void @foo(i32 signext %a, i32 signext %b) #0 { +entry: + %cmp = icmp sgt i32 %a, 5 + %cmp1 = icmp slt i32 %b, 3 + %or.cond = or i1 %cmp, %cmp1 + br i1 %or.cond, label %if.then, label %if.else + +; CHECK-LABEL: @foo +; CHECK: cmpwi +; CHECK: cmpwi +; CHECK: cror +; CHECK: blr + +if.then: ; preds = %entry + tail call void bitcast (void (...)* @bar to void ()*)() #0 + br label %if.end + +if.else: ; preds = %entry + tail call void bitcast (void (...)* @car to void ()*)() #0 + br label %if.end + +if.end: ; preds = %if.else, %if.then + ret void +} + +declare void @bar(...) + +declare void @car(...) + +attributes #0 = { nounwind } + |
