mirror of
https://github.com/RPCSX/llvm.git
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e6ec388ee9
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284242 91177308-0d34-0410-b5e6-96231b3b80d8
213 lines
4.2 KiB
LLVM
213 lines
4.2 KiB
LLVM
; 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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define i23 @test1(i23 %A) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: ret i23 0
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;
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%B = sub i23 %A, %A
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ret i23 %B
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}
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define i47 @test2(i47 %A) {
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: ret i47 %A
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;
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%B = sub i47 %A, 0
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ret i47 %B
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}
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define i97 @test3(i97 %A) {
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: ret i97 %A
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;
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%B = sub i97 0, %A
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%C = sub i97 0, %B
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ret i97 %C
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}
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define i108 @test4(i108 %A, i108 %x) {
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; CHECK-LABEL: @test4(
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; CHECK-NEXT: [[C:%.*]] = add i108 %x, %A
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; CHECK-NEXT: ret i108 [[C]]
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;
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%B = sub i108 0, %A
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%C = sub i108 %x, %B
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ret i108 %C
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}
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define i19 @test5(i19 %A, i19 %Bok, i19 %Cok) {
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; CHECK-LABEL: @test5(
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; CHECK-NEXT: [[D1:%.*]] = sub i19 %Cok, %Bok
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; CHECK-NEXT: [[E:%.*]] = add i19 [[D1]], %A
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; CHECK-NEXT: ret i19 [[E]]
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;
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%D = sub i19 %Bok, %Cok
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%E = sub i19 %A, %D
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ret i19 %E
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}
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define i57 @test6(i57 %A, i57 %B) {
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; CHECK-LABEL: @test6(
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; CHECK-NEXT: [[B_NOT:%.*]] = xor i57 %B, -1
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; CHECK-NEXT: [[D:%.*]] = and i57 %A, [[B_NOT]]
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; CHECK-NEXT: ret i57 [[D]]
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;
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%C = and i57 %A, %B
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%D = sub i57 %A, %C
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ret i57 %D
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}
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define i77 @test7(i77 %A) {
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; CHECK-LABEL: @test7(
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; CHECK-NEXT: [[B:%.*]] = xor i77 %A, -1
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; CHECK-NEXT: ret i77 [[B]]
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;
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%B = sub i77 -1, %A
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ret i77 %B
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}
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define i27 @test8(i27 %A) {
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; CHECK-LABEL: @test8(
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; CHECK-NEXT: [[C:%.*]] = shl i27 %A, 3
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; CHECK-NEXT: ret i27 [[C]]
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;
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%B = mul i27 9, %A
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%C = sub i27 %B, %A
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ret i27 %C
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}
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define i42 @test9(i42 %A) {
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; CHECK-LABEL: @test9(
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; CHECK-NEXT: [[C:%.*]] = mul i42 %A, -2
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; CHECK-NEXT: ret i42 [[C]]
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;
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%B = mul i42 3, %A
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%C = sub i42 %A, %B
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ret i42 %C
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}
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define i124 @test10(i124 %A, i124 %B) {
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; CHECK-LABEL: @test10(
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; CHECK-NEXT: [[E:%.*]] = mul i124 %A, %B
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; CHECK-NEXT: ret i124 [[E]]
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;
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%C = sub i124 0, %A
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%D = sub i124 0, %B
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%E = mul i124 %C, %D
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ret i124 %E
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}
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define i55 @test10a(i55 %A) {
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; CHECK-LABEL: @test10a(
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; CHECK-NEXT: [[E:%.*]] = mul i55 %A, -7
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; CHECK-NEXT: ret i55 [[E]]
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;
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%C = sub i55 0, %A
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%E = mul i55 %C, 7
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ret i55 %E
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}
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define i1 @test11(i9 %A, i9 %B) {
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; CHECK-LABEL: @test11(
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; CHECK-NEXT: [[CD:%.*]] = icmp ne i9 %A, %B
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; CHECK-NEXT: ret i1 [[CD]]
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;
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%C = sub i9 %A, %B
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%cD = icmp ne i9 %C, 0
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ret i1 %cD
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}
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define i43 @test12(i43 %A) {
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; CHECK-LABEL: @test12(
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; CHECK-NEXT: [[C:%.*]] = lshr i43 %A, 42
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; CHECK-NEXT: ret i43 [[C]]
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;
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%B = ashr i43 %A, 42
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%C = sub i43 0, %B
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ret i43 %C
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}
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define i79 @test13(i79 %A) {
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; CHECK-LABEL: @test13(
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; CHECK-NEXT: [[C:%.*]] = ashr i79 %A, 78
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; CHECK-NEXT: ret i79 [[C]]
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;
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%B = lshr i79 %A, 78
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%C = sub i79 0, %B
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ret i79 %C
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}
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define i1024 @test14(i1024 %A) {
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; CHECK-LABEL: @test14(
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; CHECK-NEXT: [[D:%.*]] = ashr i1024 %A, 1023
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; CHECK-NEXT: ret i1024 [[D]]
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;
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%B = lshr i1024 %A, 1023
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%C = bitcast i1024 %B to i1024
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%D = sub i1024 0, %C
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ret i1024 %D
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}
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define i51 @test16(i51 %A) {
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; CHECK-LABEL: @test16(
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; CHECK-NEXT: [[Y:%.*]] = sdiv i51 %A, -1123
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; CHECK-NEXT: ret i51 [[Y]]
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;
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%X = sdiv i51 %A, 1123
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%Y = sub i51 0, %X
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ret i51 %Y
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}
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; Can't fold subtract here because negation might overflow.
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; PR3142
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define i25 @test17(i25 %Aok) {
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; CHECK-LABEL: @test17(
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; CHECK-NEXT: [[B:%.*]] = sub i25 0, %Aok
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; CHECK-NEXT: [[C:%.*]] = sdiv i25 [[B]], 1234
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; CHECK-NEXT: ret i25 [[C]]
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;
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%B = sub i25 0, %Aok
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%C = sdiv i25 %B, 1234
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ret i25 %C
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}
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define i128 @test18(i128 %Y) {
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; CHECK-LABEL: @test18(
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; CHECK-NEXT: ret i128 0
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;
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%t1 = shl i128 %Y, 2
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%t2 = shl i128 %Y, 2
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%t3 = sub i128 %t1, %t2
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ret i128 %t3
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}
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define i39 @test19(i39 %X, i39 %Y) {
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; CHECK-LABEL: @test19(
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; CHECK-NEXT: ret i39 %X
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;
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%Z = sub i39 %X, %Y
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%Q = add i39 %Z, %Y
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ret i39 %Q
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}
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define i1 @test20(i33 %g, i33 %h) {
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; CHECK-LABEL: @test20(
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; CHECK-NEXT: [[T4:%.*]] = icmp ne i33 %h, 0
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; CHECK-NEXT: ret i1 [[T4]]
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;
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%t2 = sub i33 %g, %h
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%t4 = icmp ne i33 %t2, %g
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ret i1 %t4
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}
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define i1 @test21(i256 %g, i256 %h) {
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; CHECK-LABEL: @test21(
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; CHECK-NEXT: [[T4:%.*]] = icmp ne i256 %h, 0
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; CHECK-NEXT: ret i1 [[T4]]
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;
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%t2 = sub i256 %g, %h
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%t4 = icmp ne i256 %t2, %g
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ret i1 %t4
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}
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