git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222704
91177308-0d34-0410-b5e6-
96231b3b80d8
-; RUN: opt < %s -instcombine -S | grep "ret i1 false"
+; RUN: opt -instcombine -S < %s | FileCheck %s
+
+; CHECK-LABEL: @f(
+; CHECK: ret i1 false
define i1 @f(i8* %x) {
entry:
%tmp462 = load i8* %x, align 1 ; <i8> [#uses=1]
define i1 @f(i8* %x) {
entry:
%tmp462 = load i8* %x, align 1 ; <i8> [#uses=1]
; When inst combining an FCMP with the LHS coming from a uitofp instruction, we
; can't lower it to signed ICMP instructions.
; When inst combining an FCMP with the LHS coming from a uitofp instruction, we
; can't lower it to signed ICMP instructions.
define i1 @test1(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp ole double %1, 0.000000e+00
define i1 @test1(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp ole double %1, 0.000000e+00
define i1 @test2(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp olt double %1, 0.000000e+00
define i1 @test2(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp olt double %1, 0.000000e+00
define i1 @test3(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp oge double %1, 0.000000e+00
define i1 @test3(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp oge double %1, 0.000000e+00
define i1 @test4(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp ogt double %1, 0.000000e+00
define i1 @test4(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp ogt double %1, 0.000000e+00
define i1 @test5(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp ogt double %1, -4.400000e+00
define i1 @test5(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp ogt double %1, -4.400000e+00
define i1 @test6(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp olt double %1, -4.400000e+00
define i1 @test6(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp olt double %1, -4.400000e+00
; Check that optimizing unsigned >= comparisons correctly distinguishes
; positive and negative constants. <rdar://problem/12029145>
; Check that optimizing unsigned >= comparisons correctly distinguishes
; positive and negative constants. <rdar://problem/12029145>
define i1 @test7(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp oge double %1, 3.200000e+00
define i1 @test7(i32 %val) {
%1 = uitofp i32 %val to double
%2 = fcmp oge double %1, 3.200000e+00