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llvm-mirror/test/CodeGen/ARM/smlad10.ll
Eli Friedman ec411cfda2 Revert r344693 ("[ARM] bottom-top mul support in ARMParallelDSP")
Still causing failures on the polly-aosp buildbot; I'll follow up
with a reduced testcase.

llvm-svn: 344752
2018-10-18 19:34:30 +00:00

48 lines
1.6 KiB
LLVM

; RUN: opt -mtriple=arm-arm-eabi -mcpu=cortex-m33 < %s -arm-parallel-dsp -S | FileCheck %s
;
; Reduction statement is an i64 type: we only support i32 so check that the
; rewrite isn't triggered.
;
; CHECK-NOT: call i32 @llvm.arm.smlad
;
define dso_local i64 @test(i64 %arg, i64* nocapture readnone %arg1, i16* nocapture readonly %arg2, i16* nocapture readonly %arg3) {
entry:
%cmp24 = icmp sgt i64 %arg, 0
br i1 %cmp24, label %for.body.preheader, label %for.cond.cleanup
for.body.preheader:
%.pre = load i16, i16* %arg3, align 2
%.pre27 = load i16, i16* %arg2, align 2
br label %for.body
for.cond.cleanup:
%mac1.0.lcssa = phi i64 [ 0, %entry ], [ %add11, %for.body ]
ret i64 %mac1.0.lcssa
for.body:
%mac1.026 = phi i64 [ %add11, %for.body ], [ 0, %for.body.preheader ]
%i.025 = phi i64 [ %add, %for.body ], [ 0, %for.body.preheader ]
%arrayidx = getelementptr inbounds i16, i16* %arg3, i64 %i.025
%0 = load i16, i16* %arrayidx, align 2
%add = add nuw nsw i64 %i.025, 1
%arrayidx1 = getelementptr inbounds i16, i16* %arg3, i64 %add
%1 = load i16, i16* %arrayidx1, align 2
%arrayidx3 = getelementptr inbounds i16, i16* %arg2, i64 %i.025
%2 = load i16, i16* %arrayidx3, align 2
%conv = sext i16 %2 to i64
%conv4 = sext i16 %0 to i64
%mul = mul nsw i64 %conv, %conv4
%arrayidx6 = getelementptr inbounds i16, i16* %arg2, i64 %add
%3 = load i16, i16* %arrayidx6, align 2
%conv7 = sext i16 %3 to i64
%conv8 = sext i16 %1 to i64
%mul9 = mul nsw i64 %conv7, %conv8
%add10 = add i64 %mul, %mac1.026
%add11 = add i64 %mul9, %add10
%exitcond = icmp ne i64 %add, %arg
br i1 %exitcond, label %for.body, label %for.cond.cleanup
}