92 lines
3.8 KiB
LLVM
92 lines
3.8 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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declare { i4, i1 } @llvm.smul.with.overflow.i4(i4, i4) #1
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define i1 @t0_smul(i4 %size, i4 %nmemb) {
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; CHECK-LABEL: @t0_smul(
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; CHECK-NEXT: [[SMUL:%.*]] = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 [[SIZE:%.*]], i4 [[NMEMB:%.*]])
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; CHECK-NEXT: [[SMUL_OV:%.*]] = extractvalue { i4, i1 } [[SMUL]], 1
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; CHECK-NEXT: ret i1 [[SMUL_OV]]
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;
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%cmp = icmp ne i4 %size, 0
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%smul = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 %size, i4 %nmemb)
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%smul.ov = extractvalue { i4, i1 } %smul, 1
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%and = select i1 %smul.ov, i1 %cmp, i1 false
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ret i1 %and
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}
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define i1 @t1_commutative(i4 %size, i4 %nmemb) {
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; CHECK-LABEL: @t1_commutative(
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; CHECK-NEXT: [[NMEMB_FR:%.*]] = freeze i4 [[NMEMB:%.*]]
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; CHECK-NEXT: [[SMUL:%.*]] = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 [[SIZE:%.*]], i4 [[NMEMB_FR]])
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; CHECK-NEXT: [[SMUL_OV:%.*]] = extractvalue { i4, i1 } [[SMUL]], 1
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; CHECK-NEXT: ret i1 [[SMUL_OV]]
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;
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%cmp = icmp ne i4 %size, 0
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%smul = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 %size, i4 %nmemb)
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%smul.ov = extractvalue { i4, i1 } %smul, 1
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%and = select i1 %cmp, i1 %smul.ov, i1 false ; swapped
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ret i1 %and
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}
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define i1 @n2_wrong_size(i4 %size0, i4 %size1, i4 %nmemb) {
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; CHECK-LABEL: @n2_wrong_size(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne i4 [[SIZE1:%.*]], 0
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; CHECK-NEXT: [[SMUL:%.*]] = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 [[SIZE0:%.*]], i4 [[NMEMB:%.*]])
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; CHECK-NEXT: [[SMUL_OV:%.*]] = extractvalue { i4, i1 } [[SMUL]], 1
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; CHECK-NEXT: [[AND:%.*]] = select i1 [[SMUL_OV]], i1 [[CMP]], i1 false
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%cmp = icmp ne i4 %size1, 0 ; not %size0
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%smul = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 %size0, i4 %nmemb)
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%smul.ov = extractvalue { i4, i1 } %smul, 1
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%and = select i1 %smul.ov, i1 %cmp, i1 false
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ret i1 %and
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}
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define i1 @n3_wrong_pred(i4 %size, i4 %nmemb) {
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; CHECK-LABEL: @n3_wrong_pred(
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i4 [[SIZE:%.*]], 0
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; CHECK-NEXT: [[SMUL:%.*]] = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 [[SIZE]], i4 [[NMEMB:%.*]])
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; CHECK-NEXT: [[SMUL_OV:%.*]] = extractvalue { i4, i1 } [[SMUL]], 1
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[SMUL_OV]], [[CMP]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%cmp = icmp eq i4 %size, 0 ; not 'ne'
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%smul = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 %size, i4 %nmemb)
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%smul.ov = extractvalue { i4, i1 } %smul, 1
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%and = select i1 %smul.ov, i1 %cmp, i1 false
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ret i1 %and
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}
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define i1 @n4_not_and(i4 %size, i4 %nmemb) {
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; CHECK-LABEL: @n4_not_and(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne i4 [[SIZE:%.*]], 0
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; CHECK-NEXT: [[SMUL:%.*]] = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 [[SIZE]], i4 [[NMEMB:%.*]])
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; CHECK-NEXT: [[SMUL_OV:%.*]] = extractvalue { i4, i1 } [[SMUL]], 1
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; CHECK-NEXT: [[AND:%.*]] = or i1 [[SMUL_OV]], [[CMP]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%cmp = icmp ne i4 %size, 0
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%smul = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 %size, i4 %nmemb)
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%smul.ov = extractvalue { i4, i1 } %smul, 1
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%and = select i1 %smul.ov, i1 true, i1 %cmp ; not 'and'
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ret i1 %and
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}
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define i1 @n5_not_zero(i4 %size, i4 %nmemb) {
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; CHECK-LABEL: @n5_not_zero(
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne i4 [[SIZE:%.*]], 1
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; CHECK-NEXT: [[SMUL:%.*]] = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 [[SIZE]], i4 [[NMEMB:%.*]])
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; CHECK-NEXT: [[SMUL_OV:%.*]] = extractvalue { i4, i1 } [[SMUL]], 1
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; CHECK-NEXT: [[AND:%.*]] = and i1 [[SMUL_OV]], [[CMP]]
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; CHECK-NEXT: ret i1 [[AND]]
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;
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%cmp = icmp ne i4 %size, 1 ; should be '0'
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%smul = tail call { i4, i1 } @llvm.smul.with.overflow.i4(i4 %size, i4 %nmemb)
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%smul.ov = extractvalue { i4, i1 } %smul, 1
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%and = select i1 %smul.ov, i1 %cmp, i1 false
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ret i1 %and
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}
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