78 lines
1.7 KiB
LLVM
78 lines
1.7 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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target 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"
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define i1 @test1(i32 %X) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: [[C:%.*]] = icmp ne i32 %X, 12
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; CHECK-NEXT: ret i1 [[C]]
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;
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%A = bitcast i32 %X to i32
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; Convert to setne int %X, 12
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%c = icmp ne i32 %A, 12
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ret i1 %c
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}
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define i1 @test2(i32 %X, i32 %Y) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: [[C:%.*]] = icmp ne i32 %X, %Y
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; CHECK-NEXT: ret i1 [[C]]
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;
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%A = bitcast i32 %X to i32
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%B = bitcast i32 %Y to i32
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; Convert to setne int %X, %Y
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%c = icmp ne i32 %A, %B
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ret i1 %c
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}
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define i32 @test4(i32 %A) {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: [[C:%.*]] = shl i32 %A, 2
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; CHECK-NEXT: ret i32 [[C]]
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;
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%B = bitcast i32 %A to i32
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%C = shl i32 %B, 2
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%D = bitcast i32 %C to i32
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ret i32 %D
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}
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define i16 @test5(i16 %A) {
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: [[C:%.*]] = and i16 %A, 15
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; CHECK-NEXT: ret i16 [[C]]
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;
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%B = sext i16 %A to i32
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%C = and i32 %B, 15
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%D = trunc i32 %C to i16
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ret i16 %D
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}
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define i1 @test6(i1 %A) {
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; CHECK-LABEL: @test6(
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; CHECK-NEXT: ret i1 %A
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;
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%B = zext i1 %A to i32
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%C = icmp ne i32 %B, 0
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ret i1 %C
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}
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define i1 @test6a(i1 %A) {
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; CHECK-LABEL: @test6a(
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; CHECK-NEXT: ret i1 true
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;
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%B = zext i1 %A to i32
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%C = icmp ne i32 %B, -1
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ret i1 %C
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}
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define i1 @test7(i8* %A) {
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; CHECK-LABEL: @test7(
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; CHECK-NEXT: [[C:%.*]] = icmp eq i8* %A, null
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; CHECK-NEXT: ret i1 [[C]]
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;
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%B = bitcast i8* %A to i32*
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%C = icmp eq i32* %B, null
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ret i1 %C
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}
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