vendor/llvm/llvm-trunk-r238337

1 files changed, 25 insertions, 0 deletions

diff --git a/test/Transforms/Reassociate/crash2.ll b/test/Transforms/Reassociate/crash2.ll
new file mode 100644
index 000000000000..b51a88ca674d
--- /dev/null
+++ b/test/Transforms/Reassociate/crash2.ll
@@ -0,0 +1,25 @@
+; RUN: opt -reassociate %s -S -o - | FileCheck %s
+
+; Reassociate pass used to crash on these example
+
+
+define float @undef1() {
+wrapper_entry:
+; CHECK-LABEL: @undef1
+; CHECK: ret float fadd (float undef, float fadd (float undef, float fadd (float fsub (float -0.000000e+00, float undef), float fsub (float -0.000000e+00, float undef))))
+  %0 = fadd fast float undef, undef
+  %1 = fsub fast float undef, %0
+  %2 = fadd fast float undef, %1
+  ret float %2
+}
+
+define void @undef2() {
+wrapper_entry:
+; CHECK-LABEL: @undef2
+; CHECK: unreachable
+  %0 = fadd fast float undef, undef
+  %1 = fadd fast float %0, 1.000000e+00
+  %2 = fsub fast float %0, %1
+  %3 = fmul fast float %2, 2.000000e+00
+  unreachable
+}