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llvm-project/llvm/test/CodeGen/X86/critical-edge-split-2.ll

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[x86] auto-generate full checks; NFC I don't see anything Darwin-specific here, so I made the target generic x86-64. llvm-svn: 311465
2017-08-23 00:27:00 +08:00
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s
fix PR8642: if a critical edge has a PHI value that can trap, isel is *required* to split the edge. PHI values get evaluated on the edge, not in their predecessor block. llvm-svn: 122170
2010-12-19 12:58:57 +08:00
%0 = type <{ %1, %1 }>
%1 = type { i8, i8, i8, i8 }
@g_2 = global %0 zeroinitializer
@g_4 = global %1 zeroinitializer, align 4
; PR8642
define i16 @test1(i1 zeroext %C, i8** nocapture %argv) nounwind ssp {
[x86] auto-generate full checks; NFC I don't see anything Darwin-specific here, so I made the target generic x86-64. llvm-svn: 311465
2017-08-23 00:27:00 +08:00
; CHECK-LABEL: test1:
; CHECK: # BB#0: # %entry
; CHECK-NEXT: movw $1, %ax
[DAGCombiner] fold assertzexts separated by trunc If we have an AssertZext of a truncated value that has already been AssertZext'ed, we can assert on the wider source op to improve the zext-y knowledge: assert (trunc (assert X, i8) to iN), i1 --> trunc (assert X, i1) to iN This moves a fold from being Mips-specific to general combining, and x86 shows improvements. Differential Revision: https://reviews.llvm.org/D37017 llvm-svn: 313577
2017-09-19 06:05:35 +08:00
; CHECK-NEXT: testl %edi, %edi
[x86] auto-generate full checks; NFC I don't see anything Darwin-specific here, so I made the target generic x86-64. llvm-svn: 311465
2017-08-23 00:27:00 +08:00
; CHECK-NEXT: jne .LBB0_2
; CHECK-NEXT: # BB#1: # %cond.false.i
; CHECK-NEXT: movl $g_4, %eax
; CHECK-NEXT: movl $g_2+4, %ecx
; CHECK-NEXT: xorl %esi, %esi
; CHECK-NEXT: cmpq %rax, %rcx
; CHECK-NEXT: sete %sil
; CHECK-NEXT: movl $1, %eax
; CHECK-NEXT: xorl %edx, %edx
; CHECK-NEXT: divl %esi
; CHECK-NEXT: movl %edx, %eax
; CHECK-NEXT: .LBB0_2: # %cond.end.i
; CHECK-NEXT: # kill: %AX<def> %AX<kill> %EAX<kill>
; CHECK-NEXT: retq
fix PR8642: if a critical edge has a PHI value that can trap, isel is *required* to split the edge. PHI values get evaluated on the edge, not in their predecessor block. llvm-svn: 122170
2010-12-19 12:58:57 +08:00
entry:
br i1 %C, label %cond.end.i, label %cond.false.i
[x86] auto-generate full checks; NFC I don't see anything Darwin-specific here, so I made the target generic x86-64. llvm-svn: 311465
2017-08-23 00:27:00 +08:00
cond.false.i:
fix PR8642: if a critical edge has a PHI value that can trap, isel is *required* to split the edge. PHI values get evaluated on the edge, not in their predecessor block. llvm-svn: 122170
2010-12-19 12:58:57 +08:00
br label %cond.end.i
[x86] auto-generate full checks; NFC I don't see anything Darwin-specific here, so I made the target generic x86-64. llvm-svn: 311465
2017-08-23 00:27:00 +08:00
cond.end.i:
[opaque pointer type] Add textual IR support for explicit type parameter to gep operator Similar to gep (r230786) and load (r230794) changes. Similar migration script can be used to update test cases, which successfully migrated all of LLVM and Polly, but about 4 test cases needed manually changes in Clang. (this script will read the contents of stdin and massage it into stdout - wrap it in the 'apply.sh' script shown in previous commits + xargs to apply it over a large set of test cases) import fileinput import sys import re rep = re.compile(r"(getelementptr(?:\s+inbounds)?\s*\()((<\d*\s+x\s+)?([^@]*?)(|\s*addrspace\(\d+\))\s*\*(?(3)>)\s*)(?=$|%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|zeroinitializer|<|\[\[[a-zA-Z]|\{\{)", re.MULTILINE | re.DOTALL) def conv(match): line = match.group(1) line += match.group(4) line += ", " line += match.group(2) return line line = sys.stdin.read() off = 0 for match in re.finditer(rep, line): sys.stdout.write(line[off:match.start()]) sys.stdout.write(conv(match)) off = match.end() sys.stdout.write(line[off:]) llvm-svn: 232184
2015-03-14 02:20:45 +08:00
%call1 = phi i16 [ trunc (i32 srem (i32 1, i32 zext (i1 icmp eq (%1* bitcast (i8* getelementptr inbounds (%0, %0* @g_2, i64 0, i32 1, i32 0) to %1*), %1* @g_4) to i32)) to i16), %cond.false.i ], [ 1, %entry ]
fix PR8642: if a critical edge has a PHI value that can trap, isel is *required* to split the edge. PHI values get evaluated on the edge, not in their predecessor block. llvm-svn: 122170
2010-12-19 12:58:57 +08:00
ret i16 %call1
}