Do not optimise fprintf() calls if its return value is used.

[oota-llvm.git] / test / Transforms / InstCombine / fprintf-1.ll

diff --git a/test/Transforms/InstCombine/fprintf-1.ll b/test/Transforms/InstCombine/fprintf-1.ll
index 39d86b4588cc88e8a0aff416abcc4208c3b9f2f7..e1dc191bd700c05c657755d02a8a8f7642cdb4f8 100644 (file)
--- a/test/Transforms/InstCombine/fprintf-1.ll
+++ b/test/Transforms/InstCombine/fprintf-1.ll
@@ -78,3 +78,12 @@ define void @test_no_simplify2(%FILE* %fp, double %d) {
   ret void
 ; CHECK-NEXT: ret void
 }
   ret void
 ; CHECK-NEXT: ret void
 }

+
+define i32 @test_no_simplify3(%FILE* %fp) {
+; CHECK: @test_no_simplify3
+  %fmt = getelementptr [13 x i8]* @hello_world, i32 0, i32 0
+  %1 = call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* %fmt)
+; CHECK-NEXT: call i32 (%FILE*, i8*, ...)* @fprintf(%FILE* %fp, i8* getelementptr inbounds ([13 x i8]* @hello_world, i32 0, i32 0))
+  ret i32 %1
+; CHECK-NEXT: ret i32 %1
+}