vendor/llvm/llvm-trunk-r178860

1 files changed, 17 insertions, 0 deletions

diff --git a/test/Transforms/InstCombine/exp2-2.ll b/test/Transforms/InstCombine/exp2-2.ll
new file mode 100644
index 000000000000..bed063798e29
--- /dev/null
+++ b/test/Transforms/InstCombine/exp2-2.ll
@@ -0,0 +1,17 @@
+; Test that the exp2 library call simplifier works correctly.
+;
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
+
+declare float @exp2(double)
+
+; Check that exp2 functions with the wrong prototype aren't simplified.
+
+define float @test_no_simplify1(i32 %x) {
+; CHECK: @test_no_simplify1
+  %conv = sitofp i32 %x to double
+  %ret = call float @exp2(double %conv)
+; CHECK: call float @exp2(double %conv)
+  ret float %ret
+}