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llvm-mirror/test/Transforms/InstCombine/pr38897.ll
Sanjay Patel bf8ef9fdc3 [InstCombine] use redirect of input file in regression tests; NFC
This is a repeat of 1880092722 from 2009. We should have less risk
of hitting bugs at this point because we auto-generate positive CHECK
lines only, but this makes things consistent.

Copying the original commit msg:
"Change tests from "opt %s" to "opt < %s" so that opt doesn't see the
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename."
2020-09-29 11:06:25 -04:00

29 lines
1.2 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -instcombine -S | FileCheck %s
define i32 @sharpening(i32 %b340, i1 %c, i1 %d, i32 %e, i32 %f, i32 %g, i32 %h) {
; CHECK-LABEL: @sharpening(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[SMAX58:%.*]] = select i1 [[C:%.*]], i32 [[E:%.*]], i32 [[F:%.*]]
; CHECK-NEXT: [[SMAX59:%.*]] = select i1 [[D:%.*]], i32 [[G:%.*]], i32 [[H:%.*]]
; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[SMAX59]], 1
; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[TMP0]], -1
; CHECK-NEXT: [[TMP12:%.*]] = select i1 [[TMP1]], i32 [[TMP0]], i32 -1
; CHECK-NEXT: [[TMP13:%.*]] = icmp sgt i32 [[SMAX58]], [[TMP12]]
; CHECK-NEXT: [[SMAX61:%.*]] = select i1 [[TMP13]], i32 [[SMAX58]], i32 [[TMP12]]
; CHECK-NEXT: [[TMP14:%.*]] = xor i32 [[SMAX61]], -1
; CHECK-NEXT: ret i32 [[TMP14]]
;
entry:
%smax58 = select i1 %c, i32 %e, i32 %f
%smax59 = select i1 %d, i32 %g, i32 %h
%tmp10 = sub i32 -2, %smax59
%tmp11 = icmp sgt i32 %tmp10, 0
%smax60 = select i1 %tmp11, i32 %tmp10, i32 0
%tmp12 = xor i32 %smax60, -1
%tmp13 = icmp sgt i32 %smax58, %tmp12
%smax61 = select i1 %tmp13, i32 %smax58, i32 %tmp12
%tmp14 = xor i32 %smax61, -1
ret i32 %tmp14
}