llvm-for-llvmta/test/Bitcode/fcmp-fast.ll

24 lines
700 B
LLVM

; RUN: llvm-as < %s | llvm-dis > %t0
; RUN: opt -S < %s > %t1
; RUN: diff %t0 %t1
; RUN: FileCheck < %t1 %s
; Make sure fast math flags on fcmp instructions are serialized/deserialized properly.
define i1 @foo(float %a, float %b, double %c, double %d) {
; CHECK: %plain = fcmp ueq float %a, %b
%plain = fcmp ueq float %a, %b
; CHECK: %fast = fcmp fast olt float %a, %b
%fast = fcmp fast olt float %a, %b
; CHECK: %nsz = fcmp nsz uge float %a, %b
%nsz = fcmp nsz uge float %a, %b
; CHECK: %nnan = fcmp nnan nsz oge double %c, %d
%nnan = fcmp nnan nsz oge double %c, %d
%dce1 = or i1 %plain, %fast
%dce2 = or i1 %dce1, %nsz
%dce3 = or i1 %dce2, %nnan
ret i1 %dce3
}