llvm-6502/test/Transforms/InstCombine/assume-redundant.ll
David Blaikie 7c9c6ed761 [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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230794 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 21:17:42 +00:00

56 lines
2.0 KiB
LLVM

; RUN: opt -domtree -instcombine -loops -S < %s | FileCheck %s
; Note: The -loops above can be anything that requires the domtree, and is
; necessary to work around a pass-manager bug.
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
%struct.s = type { double* }
; Function Attrs: nounwind uwtable
define void @_Z3fooR1s(%struct.s* nocapture readonly dereferenceable(8) %x) #0 {
; CHECK-LABEL: @_Z3fooR1s
; CHECK: call void @llvm.assume
; CHECK-NOT: call void @llvm.assume
entry:
%a = getelementptr inbounds %struct.s, %struct.s* %x, i64 0, i32 0
%0 = load double*, double** %a, align 8
%ptrint = ptrtoint double* %0 to i64
%maskedptr = and i64 %ptrint, 31
%maskcond = icmp eq i64 %maskedptr, 0
br label %for.body
for.body: ; preds = %for.body, %entry
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next.1, %for.body ]
tail call void @llvm.assume(i1 %maskcond)
%arrayidx = getelementptr inbounds double, double* %0, i64 %indvars.iv
%1 = load double, double* %arrayidx, align 16
%add = fadd double %1, 1.000000e+00
tail call void @llvm.assume(i1 %maskcond)
%mul = fmul double %add, 2.000000e+00
store double %mul, double* %arrayidx, align 16
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
tail call void @llvm.assume(i1 %maskcond)
%arrayidx.1 = getelementptr inbounds double, double* %0, i64 %indvars.iv.next
%2 = load double, double* %arrayidx.1, align 8
%add.1 = fadd double %2, 1.000000e+00
tail call void @llvm.assume(i1 %maskcond)
%mul.1 = fmul double %add.1, 2.000000e+00
store double %mul.1, double* %arrayidx.1, align 8
%indvars.iv.next.1 = add nuw nsw i64 %indvars.iv.next, 1
%exitcond.1 = icmp eq i64 %indvars.iv.next, 1599
br i1 %exitcond.1, label %for.end, label %for.body
for.end: ; preds = %for.body
ret void
}
; Function Attrs: nounwind
declare void @llvm.assume(i1) #1
attributes #0 = { nounwind uwtable }
attributes #1 = { nounwind }