mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 18:54:02 +01:00
84c021a3a6
Support reassociation for min/max. With that we should be able to transform min(min(a, b), c) -> min(min(a, c), b) if min(a, c) is already available. Reviewed By: mkazantsev, lebedev.ri Differential Revision: https://reviews.llvm.org/D88287
171 lines
6.7 KiB
LLVM
171 lines
6.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt < %s -nary-reassociate -S | FileCheck %s
|
|
; RUN: opt < %s -passes='nary-reassociate' -S | FileCheck %s
|
|
|
|
declare i32 @llvm.umax.i32(i32 %a, i32 %b)
|
|
|
|
; m1 = umax(a,b) ; has side uses
|
|
; m2 = umax(umax((b,c), a) -> m2 = umax(m1, c)
|
|
define i32 @umax_test1(i32 %a, i32 %b, i32 %c) {
|
|
; CHECK-LABEL: @umax_test1(
|
|
; CHECK-NEXT: [[C1:%.*]] = icmp ugt i32 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[UMAX1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
|
|
; CHECK-NEXT: [[UMAX3_NARY:%.*]] = call i32 @llvm.umax.i32(i32 [[UMAX1]], i32 [[C:%.*]])
|
|
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMAX1]], [[UMAX3_NARY]]
|
|
; CHECK-NEXT: ret i32 [[RES]]
|
|
;
|
|
%c1 = icmp ugt i32 %a, %b
|
|
%umax1 = select i1 %c1, i32 %a, i32 %b
|
|
%c2 = icmp ugt i32 %b, %c
|
|
%umax2 = select i1 %c2, i32 %b, i32 %c
|
|
%c3 = icmp ugt i32 %umax2, %a
|
|
%umax3 = select i1 %c3, i32 %umax2, i32 %a
|
|
%res = add i32 %umax1, %umax3
|
|
ret i32 %res
|
|
}
|
|
|
|
; m1 = umax(a,b) ; has side uses
|
|
; m2 = umax(b, (umax(a, c))) -> m2 = umax(m1, c)
|
|
define i32 @umax_test2(i32 %a, i32 %b, i32 %c) {
|
|
; CHECK-LABEL: @umax_test2(
|
|
; CHECK-NEXT: [[C1:%.*]] = icmp ugt i32 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[UMAX1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
|
|
; CHECK-NEXT: [[UMAX3_NARY:%.*]] = call i32 @llvm.umax.i32(i32 [[UMAX1]], i32 [[C:%.*]])
|
|
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMAX1]], [[UMAX3_NARY]]
|
|
; CHECK-NEXT: ret i32 [[RES]]
|
|
;
|
|
%c1 = icmp ugt i32 %a, %b
|
|
%umax1 = select i1 %c1, i32 %a, i32 %b
|
|
%c2 = icmp ugt i32 %a, %c
|
|
%umax2 = select i1 %c2, i32 %a, i32 %c
|
|
%c3 = icmp ugt i32 %b, %umax2
|
|
%umax3 = select i1 %c3, i32 %b, i32 %umax2
|
|
%res = add i32 %umax1, %umax3
|
|
ret i32 %res
|
|
}
|
|
|
|
; Same test as umax_test1 but uses @llvm.umax intrinsic
|
|
define i32 @umax_test3(i32 %a, i32 %b, i32 %c) {
|
|
; CHECK-LABEL: @umax_test3(
|
|
; CHECK-NEXT: [[UMAX1:%.*]] = call i32 @llvm.umax.i32(i32 [[A:%.*]], i32 [[B:%.*]])
|
|
; CHECK-NEXT: [[UMAX3_NARY:%.*]] = call i32 @llvm.umax.i32(i32 [[UMAX1]], i32 [[C:%.*]])
|
|
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMAX1]], [[UMAX3_NARY]]
|
|
; CHECK-NEXT: ret i32 [[RES]]
|
|
;
|
|
%umax1 = call i32 @llvm.umax.i32(i32 %a, i32 %b)
|
|
%umax2 = call i32 @llvm.umax.i32(i32 %b, i32 %c)
|
|
%umax3 = call i32 @llvm.umax.i32(i32 %umax2, i32 %a)
|
|
%res = add i32 %umax1, %umax3
|
|
ret i32 %res
|
|
}
|
|
|
|
; m1 = umax(a,b) ; has side uses
|
|
; m2 = umax(umax_or_eq((b,c), a) -> m2 = umax(m1, c)
|
|
define i32 @umax_test4(i32 %a, i32 %b, i32 %c) {
|
|
; CHECK-LABEL: @umax_test4(
|
|
; CHECK-NEXT: [[C1:%.*]] = icmp ugt i32 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[UMAX1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
|
|
; CHECK-NEXT: [[UMAX3_NARY:%.*]] = call i32 @llvm.umax.i32(i32 [[UMAX1]], i32 [[C:%.*]])
|
|
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMAX1]], [[UMAX3_NARY]]
|
|
; CHECK-NEXT: ret i32 [[RES]]
|
|
;
|
|
%c1 = icmp ugt i32 %a, %b
|
|
%umax1 = select i1 %c1, i32 %a, i32 %b
|
|
%c2 = icmp uge i32 %b, %c
|
|
%umax_or_eq2 = select i1 %c2, i32 %b, i32 %c
|
|
%c3 = icmp ugt i32 %umax_or_eq2, %a
|
|
%umax3 = select i1 %c3, i32 %umax_or_eq2, i32 %a
|
|
%res = add i32 %umax1, %umax3
|
|
ret i32 %res
|
|
}
|
|
|
|
; m1 = umax_or_eq(a,b) ; has side uses
|
|
; m2 = umax_or_eq(umax((b,c), a) -> m2 = umax(m1, c)
|
|
define i32 @umax_test5(i32 %a, i32 %b, i32 %c) {
|
|
; CHECK-LABEL: @umax_test5(
|
|
; CHECK-NEXT: [[C1:%.*]] = icmp uge i32 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[UMAX_OR_EQ1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
|
|
; CHECK-NEXT: [[UMAX_OR_EQ3_NARY:%.*]] = call i32 @llvm.umax.i32(i32 [[UMAX_OR_EQ1]], i32 [[C:%.*]])
|
|
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMAX_OR_EQ1]], [[UMAX_OR_EQ3_NARY]]
|
|
; CHECK-NEXT: ret i32 [[RES]]
|
|
;
|
|
%c1 = icmp uge i32 %a, %b
|
|
%umax_or_eq1 = select i1 %c1, i32 %a, i32 %b
|
|
%c2 = icmp ugt i32 %b, %c
|
|
%umax2 = select i1 %c2, i32 %b, i32 %c
|
|
%c3 = icmp uge i32 %umax2, %a
|
|
%umax_or_eq3 = select i1 %c3, i32 %umax2, i32 %a
|
|
%res = add i32 %umax_or_eq1, %umax_or_eq3
|
|
ret i32 %res
|
|
}
|
|
|
|
; m1 = umax(a,b) ; has side uses
|
|
; m2 = umax(smax((b,c), a) ; check that signed and unsigned maxs are not mixed
|
|
define i32 @umax_test6(i32 %a, i32 %b, i32 %c) {
|
|
; CHECK-LABEL: @umax_test6(
|
|
; CHECK-NEXT: [[C1:%.*]] = icmp ugt i32 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[UMAX1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
|
|
; CHECK-NEXT: [[C2:%.*]] = icmp sgt i32 [[B]], [[C:%.*]]
|
|
; CHECK-NEXT: [[SMAX2:%.*]] = select i1 [[C2]], i32 [[B]], i32 [[C]]
|
|
; CHECK-NEXT: [[C3:%.*]] = icmp ugt i32 [[SMAX2]], [[A]]
|
|
; CHECK-NEXT: [[UMAX3:%.*]] = select i1 [[C3]], i32 [[SMAX2]], i32 [[A]]
|
|
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMAX1]], [[UMAX3]]
|
|
; CHECK-NEXT: ret i32 [[RES]]
|
|
;
|
|
%c1 = icmp ugt i32 %a, %b
|
|
%umax1 = select i1 %c1, i32 %a, i32 %b
|
|
%c2 = icmp sgt i32 %b, %c
|
|
%smax2 = select i1 %c2, i32 %b, i32 %c
|
|
%c3 = icmp ugt i32 %smax2, %a
|
|
%umax3 = select i1 %c3, i32 %smax2, i32 %a
|
|
%res = add i32 %umax1, %umax3
|
|
ret i32 %res
|
|
}
|
|
|
|
; m1 = umax(a,b) ; has side uses
|
|
; m2 = umax(umin((b,c), a) ; check that max and min are not mixed
|
|
define i32 @umax_test7(i32 %a, i32 %b, i32 %c) {
|
|
; CHECK-LABEL: @umax_test7(
|
|
; CHECK-NEXT: [[C1:%.*]] = icmp ugt i32 [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[UMAX1:%.*]] = select i1 [[C1]], i32 [[A]], i32 [[B]]
|
|
; CHECK-NEXT: [[C2:%.*]] = icmp ult i32 [[B]], [[C:%.*]]
|
|
; CHECK-NEXT: [[UMAX2:%.*]] = select i1 [[C2]], i32 [[B]], i32 [[C]]
|
|
; CHECK-NEXT: [[C3:%.*]] = icmp ugt i32 [[UMAX2]], [[A]]
|
|
; CHECK-NEXT: [[UMAX3:%.*]] = select i1 [[C3]], i32 [[UMAX2]], i32 [[A]]
|
|
; CHECK-NEXT: [[RES:%.*]] = add i32 [[UMAX1]], [[UMAX3]]
|
|
; CHECK-NEXT: ret i32 [[RES]]
|
|
;
|
|
%c1 = icmp ugt i32 %a, %b
|
|
%umax1 = select i1 %c1, i32 %a, i32 %b
|
|
%c2 = icmp ult i32 %b, %c
|
|
%umax2 = select i1 %c2, i32 %b, i32 %c
|
|
%c3 = icmp ugt i32 %umax2, %a
|
|
%umax3 = select i1 %c3, i32 %umax2, i32 %a
|
|
%res = add i32 %umax1, %umax3
|
|
ret i32 %res
|
|
}
|
|
|
|
; Pointer types are not supported yet
|
|
define i32* @umax_test8(i32* %a, i32* %b, i32* %c) {
|
|
; CHECK-LABEL: @umax_test8(
|
|
; CHECK-NEXT: [[C1:%.*]] = icmp ugt i32* [[A:%.*]], [[B:%.*]]
|
|
; CHECK-NEXT: [[SMAX1:%.*]] = select i1 [[C1]], i32* [[A]], i32* [[B]]
|
|
; CHECK-NEXT: [[C2:%.*]] = icmp ugt i32* [[B]], [[C:%.*]]
|
|
; CHECK-NEXT: [[SMAX2:%.*]] = select i1 [[C2]], i32* [[B]], i32* [[C]]
|
|
; CHECK-NEXT: [[C3:%.*]] = icmp ugt i32* [[SMAX2]], [[A]]
|
|
; CHECK-NEXT: [[SMAX3:%.*]] = select i1 [[C3]], i32* [[SMAX2]], i32* [[A]]
|
|
; CHECK-NEXT: [[C4:%.*]] = icmp ugt i32* [[SMAX1]], [[SMAX3]]
|
|
; CHECK-NEXT: [[RES:%.*]] = select i1 [[C4]], i32* [[SMAX1]], i32* [[SMAX3]]
|
|
; CHECK-NEXT: ret i32* [[RES]]
|
|
;
|
|
%c1 = icmp ugt i32* %a, %b
|
|
%smax1 = select i1 %c1, i32* %a, i32* %b
|
|
%c2 = icmp ugt i32* %b, %c
|
|
%smax2 = select i1 %c2, i32* %b, i32* %c
|
|
%c3 = icmp ugt i32* %smax2, %a
|
|
%smax3 = select i1 %c3, i32* %smax2, i32* %a
|
|
%c4 = icmp ugt i32* %smax1, %smax3
|
|
%res = select i1 %c4, i32* %smax1, i32* %smax3
|
|
ret i32* %res
|
|
}
|