forked from OSchip/llvm-project
25 lines
910 B
LLVM
25 lines
910 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
|
|
; RUN: opt %s -instcombine -S | FileCheck %s
|
|
|
|
define i32 @PR38915(i32 %x, i32 %y, i32 %z) {
|
|
; CHECK-LABEL: @PR38915(
|
|
; CHECK-NEXT: [[TMP1:%.*]] = add i32 [[X:%.*]], -1
|
|
; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[Y:%.*]], -1
|
|
; CHECK-NEXT: [[TMP3:%.*]] = icmp sgt i32 [[TMP2]], [[TMP1]]
|
|
; CHECK-NEXT: [[M1N:%.*]] = select i1 [[TMP3]], i32 [[TMP1]], i32 [[TMP2]]
|
|
; CHECK-NEXT: [[C2:%.*]] = icmp sgt i32 [[M1N]], [[Z:%.*]]
|
|
; CHECK-NEXT: [[M2:%.*]] = select i1 [[C2]], i32 [[M1N]], i32 [[Z]]
|
|
; CHECK-NEXT: [[M2N:%.*]] = xor i32 [[M2]], -1
|
|
; CHECK-NEXT: ret i32 [[M2N]]
|
|
;
|
|
%xn = sub i32 0, %x
|
|
%yn = sub i32 0, %y
|
|
%c1 = icmp sgt i32 %xn, %yn
|
|
%m1 = select i1 %c1, i32 %xn, i32 %yn
|
|
%m1n = xor i32 %m1, -1
|
|
%c2 = icmp sgt i32 %m1n, %z
|
|
%m2 = select i1 %c2, i32 %m1n, i32 %z
|
|
%m2n = xor i32 %m2, -1
|
|
ret i32 %m2n
|
|
}
|