diff options
Diffstat (limited to 'llvm/test/CodeGen/Hexagon/constp-rewrite-branches.ll')
| -rw-r--r-- | llvm/test/CodeGen/Hexagon/constp-rewrite-branches.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/Hexagon/constp-rewrite-branches.ll b/llvm/test/CodeGen/Hexagon/constp-rewrite-branches.ll new file mode 100644 index 00000000000..dfac49cb553 --- /dev/null +++ b/llvm/test/CodeGen/Hexagon/constp-rewrite-branches.ll @@ -0,0 +1,17 @@ +; RUN: llc -O2 -march hexagon < %s | FileCheck %s + +define i32 @foo(i32 %x) { + %p = icmp eq i32 %x, 0 + br i1 %p, label %zero, label %nonzero +nonzero: + %v1 = add i32 %x, 1 + %c = icmp eq i32 %x, %v1 +; This branch will be rewritten by HCP. A bug would cause both branches to +; go away, leaving no path to "ret -1". + br i1 %c, label %zero, label %other +zero: + ret i32 0 +other: +; CHECK: -1 + ret i32 -1 +} |
