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llvm-mirror/test/Transforms/Inline/inline-fast-math-flags.ll
David Blaikie ab043ff680 [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
2015-02-27 21:17:42 +00:00

35 lines
1.1 KiB
LLVM

; RUN: opt < %s -S -inline -inline-threshold=20 | FileCheck %s
; Check that we don't drop FastMathFlag when estimating inlining profitability.
;
; In this test we should inline 'foo' to 'boo', because it'll fold to a
; constant.
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
define float @foo(float* %a, float %b) {
entry:
%a0 = load float, float* %a, align 4
%mul = fmul fast float %a0, %b
%tobool = fcmp une float %mul, 0.000000e+00
br i1 %tobool, label %if.then, label %if.end
if.then: ; preds = %entry
%a1 = load float, float* %a, align 8
%arrayidx1 = getelementptr inbounds float, float* %a, i64 1
%a2 = load float, float* %arrayidx1, align 4
%add = fadd fast float %a1, %a2
br label %if.end
if.end: ; preds = %if.then, %entry
%storemerge = phi float [ %add, %if.then ], [ 1.000000e+00, %entry ]
ret float %storemerge
}
; CHECK-LABEL: @boo
; CHECK-NOT: call float @foo
define float @boo(float* %a) {
entry:
%call = call float @foo(float* %a, float 0.000000e+00)
ret float %call
}