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| ; RUN: opt -mtriple=arm-arm-eabi -mcpu=cortex-m33 < %s -arm-parallel-dsp -S | FileCheck %s
;
; Muls with operands that are constants: not yet supported, so the rewrite
; should not trigger (but we do want to add this soon).
;
; CHECK-NOT: call i32 @llvm.arm.smlad
;
define dso_local i32 @test(i32 %arg, i32* nocapture readnone %arg1, i16* nocapture readonly %arg2, i16* nocapture readonly %arg3) {
entry:
%cmp24 = icmp sgt i32 %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 i32 [ 0, %entry ], [ %add11, %for.body ]
ret i32 %mac1.0.lcssa
for.body:
%mac1.026 = phi i32 [ %add11, %for.body ], [ 0, %for.body.preheader ]
%i.025 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
%add = add nuw nsw i32 %i.025, 1
%arrayidx3 = getelementptr inbounds i16, i16* %arg2, i32 %i.025
%v2 = load i16, i16* %arrayidx3, align 2
%conv = sext i16 %v2 to i32
; RHS operand of this mul is a constant
%mul = mul nsw i32 %conv, 43
%arrayidx6 = getelementptr inbounds i16, i16* %arg2, i32 %add
%v3 = load i16, i16* %arrayidx6, align 2
%conv7 = sext i16 %v3 to i32
; And this RHS operand is a constant too.
%mul9 = mul nsw i32 %conv7, 42
%add10 = add i32 %mul, %mac1.026
%add11 = add i32 %mul9, %add10
%exitcond = icmp ne i32 %add, %arg
br i1 %exitcond, label %for.body, label %for.cond.cleanup
}
|