llvm-6502/test/CodeGen/X86/smul-with-overflow.ll
David Blaikie 5a70dd1d82 [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:])

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232184 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-13 18:20:45 +00:00

84 lines
2.4 KiB
LLVM

; RUN: llc < %s -march=x86 | FileCheck %s
@ok = internal constant [4 x i8] c"%d\0A\00"
@no = internal constant [4 x i8] c"no\0A\00"
define i1 @test1(i32 %v1, i32 %v2) nounwind {
entry:
%t = call {i32, i1} @llvm.smul.with.overflow.i32(i32 %v1, i32 %v2)
%sum = extractvalue {i32, i1} %t, 0
%obit = extractvalue {i32, i1} %t, 1
br i1 %obit, label %overflow, label %normal
normal:
%t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8], [4 x i8]* @ok, i32 0, i32 0), i32 %sum ) nounwind
ret i1 true
overflow:
%t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8], [4 x i8]* @no, i32 0, i32 0) ) nounwind
ret i1 false
; CHECK-LABEL: test1:
; CHECK: imull
; CHECK-NEXT: jno
}
define i1 @test2(i32 %v1, i32 %v2) nounwind {
entry:
%t = call {i32, i1} @llvm.smul.with.overflow.i32(i32 %v1, i32 %v2)
%sum = extractvalue {i32, i1} %t, 0
%obit = extractvalue {i32, i1} %t, 1
br i1 %obit, label %overflow, label %normal
overflow:
%t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8], [4 x i8]* @no, i32 0, i32 0) ) nounwind
ret i1 false
normal:
%t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8], [4 x i8]* @ok, i32 0, i32 0), i32 %sum ) nounwind
ret i1 true
; CHECK-LABEL: test2:
; CHECK: imull
; CHECK-NEXT: jno
}
declare i32 @printf(i8*, ...) nounwind
declare {i32, i1} @llvm.smul.with.overflow.i32(i32, i32)
define i32 @test3(i32 %a, i32 %b) nounwind readnone {
entry:
%tmp0 = add i32 %b, %a
%tmp1 = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %tmp0, i32 2)
%tmp2 = extractvalue { i32, i1 } %tmp1, 0
ret i32 %tmp2
; CHECK-LABEL: test3:
; CHECK: addl
; CHECK-NEXT: addl
; CHECK-NEXT: ret
}
define i32 @test4(i32 %a, i32 %b) nounwind readnone {
entry:
%tmp0 = add i32 %b, %a
%tmp1 = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %tmp0, i32 4)
%tmp2 = extractvalue { i32, i1 } %tmp1, 0
ret i32 %tmp2
; CHECK-LABEL: test4:
; CHECK: addl
; CHECK: mull
; CHECK-NEXT: ret
}
declare { i63, i1 } @llvm.smul.with.overflow.i63(i63, i63) nounwind readnone
define i1 @test5() nounwind {
entry:
%res = call { i63, i1 } @llvm.smul.with.overflow.i63(i63 4, i63 4611686018427387903)
%sum = extractvalue { i63, i1 } %res, 0
%overflow = extractvalue { i63, i1 } %res, 1
ret i1 %overflow
; Was returning false, should return true (not constant folded yet though).
; PR13991
; CHECK-LABEL: test5:
; CHECK-NOT: xorb
}