diff options
Diffstat (limited to 'test/CodeGen/Hexagon/ifcvt-simple-bprob.ll')
| -rw-r--r-- | test/CodeGen/Hexagon/ifcvt-simple-bprob.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/CodeGen/Hexagon/ifcvt-simple-bprob.ll b/test/CodeGen/Hexagon/ifcvt-simple-bprob.ll new file mode 100644 index 000000000000..2d48d30dd7d8 --- /dev/null +++ b/test/CodeGen/Hexagon/ifcvt-simple-bprob.ll @@ -0,0 +1,36 @@ +; RUN: llc -march=hexagon < %s + +; Check that branch probabilities are set correctly after performing the +; simple variant of if-conversion. The converted block has a branch that +; is not analyzable. + +target triple = "hexagon" + +declare void @foo() + +; CHECK-LABEL: danny +; CHECK: if (p0.new) jump:nt foo +define void @danny(i32 %x) { + %t0 = icmp sgt i32 %x, 0 + br i1 %t0, label %tail, label %exit, !prof !0 +tail: + tail call void @foo(); + ret void +exit: + ret void +} + +; CHECK-LABEL: sammy +; CHECK: if (!p0.new) jump:t foo +define void @sammy(i32 %x) { + %t0 = icmp sgt i32 %x, 0 + br i1 %t0, label %exit, label %tail, !prof !0 +tail: + tail call void @foo(); + ret void +exit: + ret void +} + +!0 = !{!"branch_weights", i32 1, i32 2000} + |