160 lines
6.4 KiB
LLVM
160 lines
6.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -nary-reassociate -S | FileCheck %s
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; RUN: opt < %s -passes='nary-reassociate' -S | FileCheck %s
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declare i32 @llvm.umin.i32(i32 %a, i32 %b)
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; m1 = umin(a,b) ; has side uses
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; m2 = umin(umin((b,c), a) -> m2 = umin(m1, c)
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define i32 @umin_test1(i32 %a, i32 %b, i32 %c) {
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; CHECK-LABEL: @umin_test1(
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; CHECK-NEXT: [[C1:%.*]] = icmp ult i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[UMIN1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
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; CHECK-NEXT: [[C2:%.*]] = icmp ult i32 [[B]], [[C:%.*]]
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; CHECK-NEXT: [[UMIN2:%.*]] = select i1 [[C2]], i32 [[B]], i32 [[C]]
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; CHECK-NEXT: [[C3:%.*]] = icmp ult i32 [[UMIN2]], [[A]]
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; CHECK-NEXT: [[UMIN3:%.*]] = select i1 [[C3]], i32 [[UMIN2]], i32 [[A]]
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; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3]]
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; CHECK-NEXT: ret i32 [[RES]]
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;
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%c1 = icmp ult i32 %a, %b
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%umin1 = select i1 %c1, i32 %a, i32 %b
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%c2 = icmp ult i32 %b, %c
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%umin2 = select i1 %c2, i32 %b, i32 %c
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%c3 = icmp ult i32 %umin2, %a
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%umin3 = select i1 %c3, i32 %umin2, i32 %a
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%res = add i32 %umin1, %umin3
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ret i32 %res
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}
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; m1 = umin(a,b) ; has side uses
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; m2 = umin(b, (umin(a, c))) -> m2 = umin(m1, c)
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define i32 @umin_test2(i32 %a, i32 %b, i32 %c) {
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; CHECK-LABEL: @umin_test2(
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; CHECK-NEXT: [[C1:%.*]] = icmp ult i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[UMIN1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
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; CHECK-NEXT: [[C2:%.*]] = icmp ult i32 [[A]], [[C:%.*]]
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; CHECK-NEXT: [[UMIN2:%.*]] = select i1 [[C2]], i32 [[A]], i32 [[C]]
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; CHECK-NEXT: [[C3:%.*]] = icmp ult i32 [[B]], [[UMIN2]]
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; CHECK-NEXT: [[UMIN3:%.*]] = select i1 [[C3]], i32 [[B]], i32 [[UMIN2]]
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; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3]]
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; CHECK-NEXT: ret i32 [[RES]]
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;
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%c1 = icmp ult i32 %a, %b
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%umin1 = select i1 %c1, i32 %a, i32 %b
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%c2 = icmp ult i32 %a, %c
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%umin2 = select i1 %c2, i32 %a, i32 %c
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%c3 = icmp ult i32 %b, %umin2
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%umin3 = select i1 %c3, i32 %b, i32 %umin2
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%res = add i32 %umin1, %umin3
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ret i32 %res
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}
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; Same test as umin_test1 but uses @llvm.umin intrinsic
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define i32 @umin_test3(i32 %a, i32 %b, i32 %c) {
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; CHECK-LABEL: @umin_test3(
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; CHECK-NEXT: [[UMIN1:%.*]] = call i32 @llvm.umin.i32(i32 [[A:%.*]], i32 [[B:%.*]])
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; CHECK-NEXT: [[UMIN2:%.*]] = call i32 @llvm.umin.i32(i32 [[B]], i32 [[C:%.*]])
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; CHECK-NEXT: [[UMIN3:%.*]] = call i32 @llvm.umin.i32(i32 [[UMIN2]], i32 [[A]])
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; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3]]
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; CHECK-NEXT: ret i32 [[RES]]
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;
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%umin1 = call i32 @llvm.umin.i32(i32 %a, i32 %b)
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%umin2 = call i32 @llvm.umin.i32(i32 %b, i32 %c)
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%umin3 = call i32 @llvm.umin.i32(i32 %umin2, i32 %a)
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%res = add i32 %umin1, %umin3
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ret i32 %res
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}
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; m1 = umin(a,b) ; has side uses
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; m2 = umin(umin_or_eq((b,c), a) -> m2 = umin(m1, c)
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define i32 @umin_test4(i32 %a, i32 %b, i32 %c) {
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; CHECK-LABEL: @umin_test4(
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; CHECK-NEXT: [[C1:%.*]] = icmp ult i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[UMIN1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
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; CHECK-NEXT: [[C2:%.*]] = icmp ule i32 [[B]], [[C:%.*]]
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; CHECK-NEXT: [[UMIN_OR_EQ2:%.*]] = select i1 [[C2]], i32 [[B]], i32 [[C]]
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; CHECK-NEXT: [[C3:%.*]] = icmp ult i32 [[UMIN_OR_EQ2]], [[A]]
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; CHECK-NEXT: [[UMIN3:%.*]] = select i1 [[C3]], i32 [[UMIN_OR_EQ2]], i32 [[A]]
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; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3]]
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; CHECK-NEXT: ret i32 [[RES]]
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;
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%c1 = icmp ult i32 %a, %b
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%umin1 = select i1 %c1, i32 %a, i32 %b
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%c2 = icmp ule i32 %b, %c
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%umin_or_eq2 = select i1 %c2, i32 %b, i32 %c
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%c3 = icmp ult i32 %umin_or_eq2, %a
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%umin3 = select i1 %c3, i32 %umin_or_eq2, i32 %a
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%res = add i32 %umin1, %umin3
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ret i32 %res
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}
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; m1 = umin_or_eq(a,b) ; has side uses
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; m2 = umin_or_eq(umin((b,c), a) -> m2 = umin(m1, c)
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define i32 @umin_test5(i32 %a, i32 %b, i32 %c) {
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; CHECK-LABEL: @umin_test5(
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; CHECK-NEXT: [[C1:%.*]] = icmp ule i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[UMIN_OR_EQ1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
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; CHECK-NEXT: [[C2:%.*]] = icmp ult i32 [[B]], [[C:%.*]]
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; CHECK-NEXT: [[UMIN2:%.*]] = select i1 [[C2]], i32 [[B]], i32 [[C]]
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; CHECK-NEXT: [[C3:%.*]] = icmp ule i32 [[UMIN2]], [[A]]
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; CHECK-NEXT: [[UMIN_OR_EQ3:%.*]] = select i1 [[C3]], i32 [[UMIN2]], i32 [[A]]
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; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN_OR_EQ1]], [[UMIN_OR_EQ3]]
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; CHECK-NEXT: ret i32 [[RES]]
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;
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%c1 = icmp ule i32 %a, %b
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%umin_or_eq1 = select i1 %c1, i32 %a, i32 %b
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%c2 = icmp ult i32 %b, %c
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%umin2 = select i1 %c2, i32 %b, i32 %c
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%c3 = icmp ule i32 %umin2, %a
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%umin_or_eq3 = select i1 %c3, i32 %umin2, i32 %a
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%res = add i32 %umin_or_eq1, %umin_or_eq3
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ret i32 %res
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}
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; m1 = umin(a,b) ; has side uses
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; m2 = umin(smin((b,c), a) ; check that signed and unsigned mins are not mixed
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define i32 @umin_test6(i32 %a, i32 %b, i32 %c) {
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; CHECK-LABEL: @umin_test6(
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; CHECK-NEXT: [[C1:%.*]] = icmp ult i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[UMIN1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
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; CHECK-NEXT: [[C2:%.*]] = icmp slt i32 [[B]], [[C:%.*]]
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; CHECK-NEXT: [[SMIN2:%.*]] = select i1 [[C2]], i32 [[B]], i32 [[C]]
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; CHECK-NEXT: [[C3:%.*]] = icmp ult i32 [[SMIN2]], [[A]]
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; CHECK-NEXT: [[UMIN3:%.*]] = select i1 [[C3]], i32 [[SMIN2]], i32 [[A]]
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; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3]]
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; CHECK-NEXT: ret i32 [[RES]]
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;
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%c1 = icmp ult i32 %a, %b
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%umin1 = select i1 %c1, i32 %a, i32 %b
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%c2 = icmp slt i32 %b, %c
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%smin2 = select i1 %c2, i32 %b, i32 %c
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%c3 = icmp ult i32 %smin2, %a
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%umin3 = select i1 %c3, i32 %smin2, i32 %a
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%res = add i32 %umin1, %umin3
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ret i32 %res
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}
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; m1 = umin(a,b) ; has side uses
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; m2 = umin(umax((b,c), a) ; check that min and max are not mixed
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define i32 @umin_test7(i32 %a, i32 %b, i32 %c) {
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; CHECK-LABEL: @umin_test7(
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; CHECK-NEXT: [[C1:%.*]] = icmp ult i32 [[A:%.*]], [[B:%.*]]
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; CHECK-NEXT: [[UMIN1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
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; CHECK-NEXT: [[C2:%.*]] = icmp ugt i32 [[B]], [[C:%.*]]
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; CHECK-NEXT: [[UMAX2:%.*]] = select i1 [[C2]], i32 [[B]], i32 [[C]]
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; CHECK-NEXT: [[C3:%.*]] = icmp ult i32 [[UMAX2]], [[A]]
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; CHECK-NEXT: [[UMIN3:%.*]] = select i1 [[C3]], i32 [[UMAX2]], i32 [[A]]
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; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMIN1]], [[UMIN3]]
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; CHECK-NEXT: ret i32 [[RES]]
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;
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%c1 = icmp ult i32 %a, %b
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%umin1 = select i1 %c1, i32 %a, i32 %b
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%c2 = icmp ugt i32 %b, %c
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%umax2 = select i1 %c2, i32 %b, i32 %c
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%c3 = icmp ult i32 %umax2, %a
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%umin3 = select i1 %c3, i32 %umax2, i32 %a
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%res = add i32 %umin1, %umin3
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ret i32 %res
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}
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