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llvm-project/llvm/test/CodeGen/X86/zext-extract_subreg.ll

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[x86] regenerate full checks; NFC llvm-svn: 347167
2018-11-19 00:56:17 +08:00
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
Optimize: r1025 = s/zext r1024, 4 r1026 = extract_subreg r1025, 4 to: r1026 = copy r1024 llvm-svn: 122925
2011-01-06 07:06:49 +08:00
; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
define void @t() nounwind ssp {
Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to function definitions for more informative error messages. No functionality change and all updated tests passed locally. This update was done with the following bash script: find test/CodeGen -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc.*debug" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC: *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP done sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP mv $TEMP $NAME fi done llvm-svn: 186280
2013-07-14 14:24:09 +08:00
; CHECK-LABEL: t:
[x86] regenerate full checks; NFC llvm-svn: 347167
2018-11-19 00:56:17 +08:00
; CHECK: ## %bb.0: ## %entry
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: jne LBB0_6
; CHECK-NEXT: ## %bb.1: ## %if.end.i
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: je LBB0_2
; CHECK-NEXT: LBB0_6: ## %return
; CHECK-NEXT: retq
; CHECK-NEXT: LBB0_2: ## %if.end
[DAG] add undef simplifications for select nodes Sadly, this duplicates (twice) the logic from InstSimplify. There might be some way to at least share the DAG versions of the code, but copying the folds seems to be the standard method to ensure that we don't miss these folds. Unlike in IR, we don't run DAGCombiner to fixpoint, so there's no way to ensure that we do these kinds of simplifications unless the code is repeated at node creation time and during combines. There were other tests that would become worthless with this improvement that I changed as pre-commits: rL347161 rL347164 rL347165 rL347166 rL347167 I'm not sure how to salvage the remaining tests (diffs in this patch). So the x86 tests verify that the new code is working as intended. The AMDGPU test is actually similar to my motivating case: we have some undef value that has survived to machine IR in an x86 test, and then it gets folded in some weird way, or we crash if we don't transfer the undef flag. But we would have been better off never getting to that point by doing these simplifications. This will lead back to PR32023 someday... https://bugs.llvm.org/show_bug.cgi?id=32023 llvm-svn: 347170
2018-11-19 01:36:23 +08:00
; CHECK-NEXT: movb $1, %al
; CHECK-NEXT: testb %al, %al
[x86] regenerate full checks; NFC llvm-svn: 347167
2018-11-19 00:56:17 +08:00
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: jne LBB0_5
; CHECK-NEXT: ## %bb.3: ## %cond.true190
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: jne LBB0_5
; CHECK-NEXT: ## %bb.4: ## %cond.true225
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: testb %al, %al
; CHECK-NEXT: LBB0_5: ## %cond.false205
; CHECK-NEXT: ud2
Optimize: r1025 = s/zext r1024, 4 r1026 = extract_subreg r1025, 4 to: r1026 = copy r1024 llvm-svn: 122925
2011-01-06 07:06:49 +08:00
entry:
br i1 undef, label %return, label %if.end.i
if.end.i: ; preds = %entry
[opaque pointer type] Add textual IR support for explicit type parameter to load instruction Essentially the same as the GEP change in r230786. A similar migration script can be used to update test cases, though a few more test case improvements/changes were required this time around: (r229269-r229278) import fileinput import sys import re pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)") for line in sys.stdin: sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line)) Reviewers: rafael, dexonsmith, grosser Differential Revision: http://reviews.llvm.org/D7649 llvm-svn: 230794
2015-02-28 05:17:42 +08:00
%tmp7.i = load i32, i32* undef, align 4
Optimize: r1025 = s/zext r1024, 4 r1026 = extract_subreg r1025, 4 to: r1026 = copy r1024 llvm-svn: 122925
2011-01-06 07:06:49 +08:00
br i1 undef, label %return, label %if.end
if.end: ; preds = %if.end.i
%tmp138 = select i1 undef, i32 0, i32 %tmp7.i
%tmp867 = zext i32 %tmp138 to i64
br label %while.cond
while.cond: ; preds = %while.body, %if.end
%tmp869 = sub i64 %tmp867, 0
%scale2.0 = trunc i64 %tmp869 to i32
%cmp149 = icmp eq i32 %scale2.0, 0
br i1 %cmp149, label %while.end, label %land.rhs
land.rhs: ; preds = %while.cond
br i1 undef, label %while.body, label %while.end
while.body: ; preds = %land.rhs
br label %while.cond
while.end: ; preds = %land.rhs, %while.cond
br i1 undef, label %cond.false205, label %cond.true190
cond.true190: ; preds = %while.end
br i1 undef, label %cond.false242, label %cond.true225
cond.false205: ; preds = %while.end
unreachable
cond.true225: ; preds = %cond.true190
br i1 undef, label %cond.false280, label %cond.true271
cond.false242: ; preds = %cond.true190
unreachable
cond.true271: ; preds = %cond.true225
unreachable
cond.false280: ; preds = %cond.true225
unreachable
return: ; preds = %if.end.i, %entry
ret void
}