llvm-6502/test/Analysis/ScalarEvolution/trip-count5.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

49 lines
2.2 KiB
LLVM

; RUN: opt < %s -analyze -scalar-evolution > %t
; RUN: grep sext %t | count 2
; RUN: not grep "(sext" %t
; ScalarEvolution should be able to compute a maximum trip count
; value sufficient to fold away both sext casts.
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
define float @t(float* %pTmp1, float* %peakWeight, float* %nrgReducePeakrate, i32 %bim) nounwind {
entry:
%tmp3 = load float, float* %peakWeight, align 4 ; <float> [#uses=2]
%tmp2538 = icmp sgt i32 %bim, 0 ; <i1> [#uses=1]
br i1 %tmp2538, label %bb.nph, label %bb4
bb.nph: ; preds = %entry
br label %bb
bb: ; preds = %bb1, %bb.nph
%distERBhi.036 = phi float [ %tmp10, %bb1 ], [ 0.000000e+00, %bb.nph ] ; <float> [#uses=1]
%hiPart.035 = phi i32 [ %tmp12, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=2]
%peakCount.034 = phi float [ %tmp19, %bb1 ], [ %tmp3, %bb.nph ] ; <float> [#uses=1]
%tmp6 = sext i32 %hiPart.035 to i64 ; <i64> [#uses=1]
%tmp7 = getelementptr float, float* %pTmp1, i64 %tmp6 ; <float*> [#uses=1]
%tmp8 = load float, float* %tmp7, align 4 ; <float> [#uses=1]
%tmp10 = fadd float %tmp8, %distERBhi.036 ; <float> [#uses=3]
%tmp12 = add i32 %hiPart.035, 1 ; <i32> [#uses=3]
%tmp15 = sext i32 %tmp12 to i64 ; <i64> [#uses=1]
%tmp16 = getelementptr float, float* %peakWeight, i64 %tmp15 ; <float*> [#uses=1]
%tmp17 = load float, float* %tmp16, align 4 ; <float> [#uses=1]
%tmp19 = fadd float %tmp17, %peakCount.034 ; <float> [#uses=2]
br label %bb1
bb1: ; preds = %bb
%tmp21 = fcmp olt float %tmp10, 2.500000e+00 ; <i1> [#uses=1]
%tmp25 = icmp slt i32 %tmp12, %bim ; <i1> [#uses=1]
%tmp27 = and i1 %tmp21, %tmp25 ; <i1> [#uses=1]
br i1 %tmp27, label %bb, label %bb1.bb4_crit_edge
bb1.bb4_crit_edge: ; preds = %bb1
br label %bb4
bb4: ; preds = %bb1.bb4_crit_edge, %entry
%distERBhi.0.lcssa = phi float [ %tmp10, %bb1.bb4_crit_edge ], [ 0.000000e+00, %entry ] ; <float> [#uses=1]
%peakCount.0.lcssa = phi float [ %tmp19, %bb1.bb4_crit_edge ], [ %tmp3, %entry ] ; <float> [#uses=1]
%tmp31 = fdiv float %peakCount.0.lcssa, %distERBhi.0.lcssa ; <float> [#uses=1]
ret float %tmp31
}