349 lines
10 KiB
LLVM
349 lines
10 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
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; RUN: opt -passes=constraint-elimination -S %s | FileCheck %s
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; Test from PR63896
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define i1 @umax_ugt(i32 %x, i32 %y) {
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; CHECK-LABEL: define i1 @umax_ugt
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: [[MAX:%.*]] = call i32 @llvm.umax.i32(i32 [[X]], i32 1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[Y]], [[MAX]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: [[RET:%.*]] = xor i1 true, true
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; CHECK-NEXT: ret i1 [[RET]]
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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%max = call i32 @llvm.umax.i32(i32 %x, i32 1)
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%cmp = icmp ugt i32 %y, %max
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br i1 %cmp, label %if, label %end
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if:
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%cmp2 = icmp ugt i32 %y, %x
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%cmp3 = icmp uge i32 %y, %x
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%ret = xor i1 %cmp2, %cmp3
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ret i1 %ret
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end:
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ret i1 false
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}
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define i1 @umax_uge(i32 %x, i32 %y) {
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; CHECK-LABEL: define i1 @umax_uge
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: [[MAX:%.*]] = call i32 @llvm.umax.i32(i32 [[X]], i32 1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp uge i32 [[Y]], [[MAX]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: [[CMP2:%.*]] = icmp ugt i32 [[Y]], [[X]]
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; CHECK-NEXT: [[RET:%.*]] = xor i1 [[CMP2]], true
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; CHECK-NEXT: ret i1 [[RET]]
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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%max = call i32 @llvm.umax.i32(i32 %x, i32 1)
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%cmp = icmp uge i32 %y, %max
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br i1 %cmp, label %if, label %end
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if:
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%cmp2 = icmp ugt i32 %y, %x
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%cmp3 = icmp uge i32 %y, %x
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%ret = xor i1 %cmp2, %cmp3
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ret i1 %ret
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end:
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ret i1 false
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}
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define i1 @umin_ult(i32 %x, i32 %y) {
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; CHECK-LABEL: define i1 @umin_ult
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: [[MIN:%.*]] = call i32 @llvm.umin.i32(i32 [[X]], i32 1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[Y]], [[MIN]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: [[RET:%.*]] = xor i1 true, true
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; CHECK-NEXT: ret i1 [[RET]]
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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%min = call i32 @llvm.umin.i32(i32 %x, i32 1)
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%cmp = icmp ult i32 %y, %min
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br i1 %cmp, label %if, label %end
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if:
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%cmp2 = icmp ult i32 %y, %x
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%cmp3 = icmp ule i32 %y, %x
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%ret = xor i1 %cmp2, %cmp3
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ret i1 %ret
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end:
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ret i1 false
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}
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define i1 @umin_ule(i32 %x, i32 %y) {
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; CHECK-LABEL: define i1 @umin_ule
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: [[MIN:%.*]] = call i32 @llvm.umin.i32(i32 [[X]], i32 1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp ule i32 [[Y]], [[MIN]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y]], [[X]]
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; CHECK-NEXT: [[RET:%.*]] = xor i1 [[CMP2]], true
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; CHECK-NEXT: ret i1 [[RET]]
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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%min = call i32 @llvm.umin.i32(i32 %x, i32 1)
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%cmp = icmp ule i32 %y, %min
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br i1 %cmp, label %if, label %end
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if:
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%cmp2 = icmp ult i32 %y, %x
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%cmp3 = icmp ule i32 %y, %x
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%ret = xor i1 %cmp2, %cmp3
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ret i1 %ret
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end:
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ret i1 false
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}
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define i1 @smax_sgt(i32 %x, i32 %y) {
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; CHECK-LABEL: define i1 @smax_sgt
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: [[MAX:%.*]] = call i32 @llvm.smax.i32(i32 [[X]], i32 1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[Y]], [[MAX]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: [[RET:%.*]] = xor i1 true, true
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; CHECK-NEXT: ret i1 [[RET]]
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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%max = call i32 @llvm.smax.i32(i32 %x, i32 1)
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%cmp = icmp sgt i32 %y, %max
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br i1 %cmp, label %if, label %end
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if:
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%cmp2 = icmp sgt i32 %y, %x
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%cmp3 = icmp sge i32 %y, %x
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%ret = xor i1 %cmp2, %cmp3
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ret i1 %ret
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end:
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ret i1 false
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}
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define i1 @smax_sge(i32 %x, i32 %y) {
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; CHECK-LABEL: define i1 @smax_sge
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: [[MAX:%.*]] = call i32 @llvm.smax.i32(i32 [[X]], i32 1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp sge i32 [[Y]], [[MAX]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: [[CMP2:%.*]] = icmp sgt i32 [[Y]], [[X]]
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; CHECK-NEXT: [[RET:%.*]] = xor i1 [[CMP2]], true
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; CHECK-NEXT: ret i1 [[RET]]
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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%max = call i32 @llvm.smax.i32(i32 %x, i32 1)
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%cmp = icmp sge i32 %y, %max
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br i1 %cmp, label %if, label %end
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if:
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%cmp2 = icmp sgt i32 %y, %x
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%cmp3 = icmp sge i32 %y, %x
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%ret = xor i1 %cmp2, %cmp3
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ret i1 %ret
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end:
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ret i1 false
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}
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define i1 @smin_slt(i32 %x, i32 %y) {
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; CHECK-LABEL: define i1 @smin_slt
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: [[MIN:%.*]] = call i32 @llvm.smin.i32(i32 [[X]], i32 1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[Y]], [[MIN]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: [[RET:%.*]] = xor i1 true, true
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; CHECK-NEXT: ret i1 [[RET]]
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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%min = call i32 @llvm.smin.i32(i32 %x, i32 1)
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%cmp = icmp slt i32 %y, %min
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br i1 %cmp, label %if, label %end
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if:
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%cmp2 = icmp slt i32 %y, %x
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%cmp3 = icmp sle i32 %y, %x
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%ret = xor i1 %cmp2, %cmp3
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ret i1 %ret
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end:
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ret i1 false
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}
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define i1 @smin_sle(i32 %x, i32 %y) {
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; CHECK-LABEL: define i1 @smin_sle
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: [[MIN:%.*]] = call i32 @llvm.smin.i32(i32 [[X]], i32 1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp sle i32 [[Y]], [[MIN]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: [[CMP2:%.*]] = icmp slt i32 [[Y]], [[X]]
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; CHECK-NEXT: [[RET:%.*]] = xor i1 [[CMP2]], true
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; CHECK-NEXT: ret i1 [[RET]]
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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%min = call i32 @llvm.smin.i32(i32 %x, i32 1)
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%cmp = icmp sle i32 %y, %min
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br i1 %cmp, label %if, label %end
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if:
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%cmp2 = icmp slt i32 %y, %x
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%cmp3 = icmp sle i32 %y, %x
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%ret = xor i1 %cmp2, %cmp3
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ret i1 %ret
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end:
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ret i1 false
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}
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define i1 @umax_uge_ugt_with_add_nuw(i32 %x, i32 %y) {
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; CHECK-LABEL: define i1 @umax_uge_ugt_with_add_nuw
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: [[MAX:%.*]] = call i32 @llvm.umax.i32(i32 [[X]], i32 1)
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; CHECK-NEXT: [[SUM:%.*]] = add nuw i32 [[MAX]], 1
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; CHECK-NEXT: [[CMP:%.*]] = icmp uge i32 [[Y]], [[SUM]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: ret i1 true
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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%max = call i32 @llvm.umax.i32(i32 %x, i32 1)
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%sum = add nuw i32 %max, 1
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%cmp = icmp uge i32 %y, %sum
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br i1 %cmp, label %if, label %end
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if:
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%cmp2 = icmp ugt i32 %y, %x
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ret i1 %cmp2
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end:
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ret i1 false
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}
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define i1 @smin_ule_mixed(i32 %x, i32 %y) {
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; CHECK-LABEL: define i1 @smin_ule_mixed
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: [[MIN:%.*]] = call i32 @llvm.smin.i32(i32 [[X]], i32 1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp ule i32 [[Y]], [[MIN]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: [[CMP2:%.*]] = icmp slt i32 [[Y]], [[X]]
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; CHECK-NEXT: [[CMP3:%.*]] = icmp sle i32 [[Y]], [[X]]
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; CHECK-NEXT: [[CMP4:%.*]] = icmp ult i32 [[Y]], [[X]]
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; CHECK-NEXT: [[CMP5:%.*]] = icmp ule i32 [[Y]], [[X]]
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; CHECK-NEXT: [[XOR1:%.*]] = xor i1 [[CMP2]], [[CMP3]]
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; CHECK-NEXT: [[XOR2:%.*]] = xor i1 [[CMP4]], [[CMP5]]
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; CHECK-NEXT: [[RET:%.*]] = xor i1 [[XOR1]], [[XOR2]]
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; CHECK-NEXT: ret i1 [[RET]]
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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%min = call i32 @llvm.smin.i32(i32 %x, i32 1)
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%cmp = icmp ule i32 %y, %min
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br i1 %cmp, label %if, label %end
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if:
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%cmp2 = icmp slt i32 %y, %x
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%cmp3 = icmp sle i32 %y, %x
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%cmp4 = icmp ult i32 %y, %x
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%cmp5 = icmp ule i32 %y, %x
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%xor1 = xor i1 %cmp2, %cmp3
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%xor2 = xor i1 %cmp4, %cmp5
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%ret = xor i1 %xor1, %xor2
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ret i1 %ret
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end:
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ret i1 false
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}
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define i1 @umax_ugt_ugt_both(i32 %x, i32 %y, i32 %z) {
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; CHECK-LABEL: define i1 @umax_ugt_ugt_both
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]], i32 [[Z:%.*]]) {
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; CHECK-NEXT: [[MAX:%.*]] = call i32 @llvm.umax.i32(i32 [[X]], i32 [[Y]])
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; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[Z]], [[MAX]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: [[AND:%.*]] = xor i1 true, true
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; CHECK-NEXT: ret i1 [[AND]]
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; CHECK: end:
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; CHECK-NEXT: ret i1 false
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;
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%max = call i32 @llvm.umax.i32(i32 %x, i32 %y)
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%cmp = icmp ugt i32 %z, %max
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br i1 %cmp, label %if, label %end
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if:
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%cmp2 = icmp ugt i32 %z, %x
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%cmp3 = icmp ugt i32 %z, %y
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%and = xor i1 %cmp2, %cmp3
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ret i1 %and
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end:
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ret i1 false
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}
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define i1 @smin_branchless(i32 %x, i32 %y) {
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; CHECK-LABEL: define i1 @smin_branchless
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[MIN:%.*]] = call i32 @llvm.smin.i32(i32 [[X]], i32 [[Y]])
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; CHECK-NEXT: [[CMP1:%.*]] = icmp sle i32 [[MIN]], [[X]]
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; CHECK-NEXT: [[CMP2:%.*]] = icmp sgt i32 [[MIN]], [[X]]
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; CHECK-NEXT: [[RET:%.*]] = xor i1 [[CMP1]], [[CMP2]]
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; CHECK-NEXT: ret i1 [[RET]]
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;
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entry:
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%min = call i32 @llvm.smin.i32(i32 %x, i32 %y)
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%cmp1 = icmp sle i32 %min, %x
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%cmp2 = icmp sgt i32 %min, %x
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%ret = xor i1 %cmp1, %cmp2
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ret i1 %ret
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}
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define i32 @simplify_smax(i32 %x, i32 %y, i32 %z) {
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; CHECK-LABEL: define i32 @simplify_smax
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; CHECK-SAME: (i32 [[X:%.*]], i32 [[Y:%.*]], i32 [[Z:%.*]]) {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[X]], [[Y]]
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; CHECK-NEXT: br i1 [[CMP]], label [[IF:%.*]], label [[END:%.*]]
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; CHECK: if:
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; CHECK-NEXT: [[MAX1:%.*]] = call i32 @llvm.smax.i32(i32 [[X]], i32 [[Z]])
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; CHECK-NEXT: [[MAX2:%.*]] = call i32 @llvm.smax.i32(i32 [[Y]], i32 [[MAX1]])
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; CHECK-NEXT: ret i32 [[MAX2]]
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; CHECK: end:
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; CHECK-NEXT: ret i32 0
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;
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entry:
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%cmp = icmp slt i32 %x, %y
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br i1 %cmp, label %if, label %end
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if:
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%max1 = call i32 @llvm.smax.i32(i32 %x, i32 %z)
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%max2 = call i32 @llvm.smax.i32(i32 %y, i32 %max1)
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ret i32 %max2
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end:
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ret i32 0
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}
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declare i32 @llvm.smin.i32(i32, i32)
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declare i32 @llvm.smax.i32(i32, i32)
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declare i32 @llvm.umin.i32(i32, i32)
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declare i32 @llvm.umax.i32(i32, i32)
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