| ; RUN: opt < %s -instcombine -S | FileCheck %s | |
| ; PR1738 | |
| define i1 @test1(double %X, double %Y) { | |
| %tmp9 = fcmp ord double %X, 0.000000e+00 | |
| %tmp13 = fcmp ord double %Y, 0.000000e+00 | |
| %bothcond = and i1 %tmp13, %tmp9 | |
| ret i1 %bothcond | |
| ; CHECK: fcmp ord double %Y, %X | |
| } | |
| define i1 @test2(i1 %X, i1 %Y) { | |
| %a = and i1 %X, %Y | |
| %b = and i1 %a, %X | |
| ret i1 %b | |
| ; CHECK: @test2 | |
| ; CHECK-NEXT: and i1 %X, %Y | |
| ; CHECK-NEXT: ret | |
| } | |
| define i32 @test3(i32 %X, i32 %Y) { | |
| %a = and i32 %X, %Y | |
| %b = and i32 %Y, %a | |
| ret i32 %b | |
| ; CHECK: @test3 | |
| ; CHECK-NEXT: and i32 %X, %Y | |
| ; CHECK-NEXT: ret | |
| } | |
| define i1 @test4(i32 %X) { | |
| %a = icmp ult i32 %X, 31 | |
| %b = icmp slt i32 %X, 0 | |
| %c = and i1 %a, %b | |
| ret i1 %c | |
| ; CHECK: @test4 | |
| ; CHECK-NEXT: ret i1 false | |
| } | |
| ; Make sure we don't go into an infinite loop with this test | |
| define <4 x i32> @test5(<4 x i32> %A) { | |
| %1 = xor <4 x i32> %A, <i32 1, i32 2, i32 3, i32 4> | |
| %2 = and <4 x i32> <i32 1, i32 2, i32 3, i32 4>, %1 | |
| ret <4 x i32> %2 | |
| } |