| ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep zext | |
| ; Never merge these two conversions, even though it's possible: this is | |
| ; significantly more expensive than the two conversions on some targets | |
| ; and it causes libgcc to be compile __fixunsdfdi into a recursive | |
| ; function. | |
| define i64 @test(double %D) { | |
| %A = fptoui double %D to i32 ; <i32> [#uses=1] | |
| %B = zext i32 %A to i64 ; <i64> [#uses=1] | |
| ret i64 %B | |
| } | |