1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=instcombine -S | FileCheck %s 3 4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128" 5 6define i1 @test1(i32 %X) { 7; CHECK-LABEL: @test1( 8; CHECK-NEXT: [[C:%.*]] = icmp ne i32 [[X:%.*]], 12 9; CHECK-NEXT: ret i1 [[C]] 10; 11 %A = bitcast i32 %X to i32 12 ; Convert to setne int %X, 12 13 %c = icmp ne i32 %A, 12 14 ret i1 %c 15} 16 17define i1 @test2(i32 %X, i32 %Y) { 18; CHECK-LABEL: @test2( 19; CHECK-NEXT: [[C:%.*]] = icmp ne i32 [[X:%.*]], [[Y:%.*]] 20; CHECK-NEXT: ret i1 [[C]] 21; 22 %A = bitcast i32 %X to i32 23 %B = bitcast i32 %Y to i32 24 ; Convert to setne int %X, %Y 25 %c = icmp ne i32 %A, %B 26 ret i1 %c 27} 28 29define i32 @test4(i32 %A) { 30; CHECK-LABEL: @test4( 31; CHECK-NEXT: [[C:%.*]] = shl i32 [[A:%.*]], 2 32; CHECK-NEXT: ret i32 [[C]] 33; 34 %B = bitcast i32 %A to i32 35 %C = shl i32 %B, 2 36 %D = bitcast i32 %C to i32 37 ret i32 %D 38} 39 40define i16 @test5(i16 %A) { 41; CHECK-LABEL: @test5( 42; CHECK-NEXT: [[TMP1:%.*]] = and i16 [[A:%.*]], 15 43; CHECK-NEXT: ret i16 [[TMP1]] 44; 45 %B = sext i16 %A to i32 46 %C = and i32 %B, 15 47 %D = trunc i32 %C to i16 48 ret i16 %D 49} 50 51define i1 @test6(i1 %A) { 52; CHECK-LABEL: @test6( 53; CHECK-NEXT: ret i1 [[A:%.*]] 54; 55 %B = zext i1 %A to i32 56 %C = icmp ne i32 %B, 0 57 ret i1 %C 58} 59 60define i1 @test6a(i1 %A) { 61; CHECK-LABEL: @test6a( 62; CHECK-NEXT: ret i1 true 63; 64 %B = zext i1 %A to i32 65 %C = icmp ne i32 %B, -1 66 ret i1 %C 67} 68 69define i1 @test7(ptr %A) { 70; CHECK-LABEL: @test7( 71; CHECK-NEXT: [[C:%.*]] = icmp eq ptr [[A:%.*]], null 72; CHECK-NEXT: ret i1 [[C]] 73; 74 %C = icmp eq ptr %A, null 75 ret i1 %C 76} 77