Files
clang-p2996/polly/test/Isl/CodeGen/inner_scev_sdiv_3.ll
Tobias Grosser f4ee371e60 tests: Drop -polly-detect-unprofitable and -polly-no-early-exit
These flags are now always passed to all tests and need to be disabled if
not needed. Disabling these flags, rather than passing them to almost all
tests, significantly simplfies our RUN: lines.

llvm-svn: 249422
2015-10-06 15:36:44 +00:00

47 lines
1.7 KiB
LLVM

; RUN: opt %loadPolly -S -polly-codegen < %s | FileCheck %s
;
; This test case has a inner SCEV sdiv that will escape the SCoP. Just check we
; do not crash and generate valid code.
;
; CHECK: polly.split_new_and_old:
;
target triple = "x86_64-unknown-linux-gnu"
define i64 @_vorbis_apply_window(float* %d, i64 %param) {
entry:
%0 = load float*, float** undef, align 8
%div23.neg = sdiv i64 0, -4
%sub24 = add i64 0, %div23.neg
br label %for.cond.30.preheader
for.cond.30.preheader: ; preds = %for.body, %entry
%sext = shl i64 %sub24, 32
%conv48.74 = ashr exact i64 %sext, 32
%div43 = sdiv i64 %param, 2
%cmp49.75 = icmp slt i64 %conv48.74, 0
br i1 %cmp49.75, label %for.body.51.lr.ph, label %for.cond.60.preheader
for.body.51.lr.ph: ; preds = %for.cond.30.preheader
%div44 = sdiv i64 %div43, 2
%sub45 = add nsw i64 %div44, 4294967295
%1 = trunc i64 %sub45 to i32
%2 = sext i32 %1 to i64
br label %for.body.51
for.cond.60.preheader: ; preds = %for.body.51, %for.cond.30.preheader
%div44.m = phi i64 [%div44, %for.body.51], [ 0, %for.cond.30.preheader]
br i1 true, label %end, label %for.cond.30.preheader
end:
ret i64 %div44.m
for.body.51: ; preds = %for.body.51, %for.body.51.lr.ph
%indvars.iv86 = phi i64 [ %2, %for.body.51.lr.ph ], [ undef, %for.body.51 ]
%arrayidx53 = getelementptr inbounds float, float* %0, i64 %indvars.iv86
%3 = load float, float* %arrayidx53, align 4
%arrayidx55 = getelementptr inbounds float, float* %d, i64 0
%mul56 = fmul float %3, undef
store float %mul56, float* %arrayidx55, align 4
br i1 false, label %for.body.51, label %for.cond.60.preheader
}