77 lines
2.9 KiB
LLVM
77 lines
2.9 KiB
LLVM
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; RUN: llc -march=hexagon -mcpu=hexagonv5 < %s | FileCheck %s
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;
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; Remove the unnecessary 'add' instruction used for the hardware loop setup.
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; CHECK: [[OP0:r[0-9]+]] = add([[OP1:r[0-9]+]],#-[[OP2:[0-9]+]]
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; CHECK-NOT: add([[OP0]],#[[OP2]])
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; CHECK: lsr([[OP1]],#{{[0-9]+}})
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; CHECK: loop0
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define void @matrix_mul_matrix(i32 %N, i32* nocapture %C, i16* nocapture readnone %A, i16* nocapture readnone %B) #0 {
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entry:
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%cmp4 = icmp eq i32 %N, 0
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br i1 %cmp4, label %for.end, label %for.body.preheader
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for.body.preheader:
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%maxval = add i32 %N, -7
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%0 = icmp sgt i32 %maxval, 0
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br i1 %0, label %for.body.preheader9, label %for.body.ur.preheader
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for.body.preheader9:
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br label %for.body
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for.body:
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%arrayidx.phi = phi i32* [ %arrayidx.inc.7, %for.body ], [ %C, %for.body.preheader9 ]
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%i.05 = phi i32 [ %inc.7, %for.body ], [ 0, %for.body.preheader9 ]
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store i32 %i.05, i32* %arrayidx.phi, align 4
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%inc = add i32 %i.05, 1
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%arrayidx.inc = getelementptr i32, i32* %arrayidx.phi, i32 1
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store i32 %inc, i32* %arrayidx.inc, align 4
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%inc.1 = add i32 %i.05, 2
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%arrayidx.inc.1 = getelementptr i32, i32* %arrayidx.phi, i32 2
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store i32 %inc.1, i32* %arrayidx.inc.1, align 4
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%inc.2 = add i32 %i.05, 3
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%arrayidx.inc.2 = getelementptr i32, i32* %arrayidx.phi, i32 3
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store i32 %inc.2, i32* %arrayidx.inc.2, align 4
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%inc.3 = add i32 %i.05, 4
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%arrayidx.inc.3 = getelementptr i32, i32* %arrayidx.phi, i32 4
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store i32 %inc.3, i32* %arrayidx.inc.3, align 4
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%inc.4 = add i32 %i.05, 5
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%arrayidx.inc.4 = getelementptr i32, i32* %arrayidx.phi, i32 5
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store i32 %inc.4, i32* %arrayidx.inc.4, align 4
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%inc.5 = add i32 %i.05, 6
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%arrayidx.inc.5 = getelementptr i32, i32* %arrayidx.phi, i32 6
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store i32 %inc.5, i32* %arrayidx.inc.5, align 4
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%inc.6 = add i32 %i.05, 7
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%arrayidx.inc.6 = getelementptr i32, i32* %arrayidx.phi, i32 7
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store i32 %inc.6, i32* %arrayidx.inc.6, align 4
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%inc.7 = add i32 %i.05, 8
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%exitcond.7 = icmp slt i32 %inc.7, %maxval
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%arrayidx.inc.7 = getelementptr i32, i32* %arrayidx.phi, i32 8
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br i1 %exitcond.7, label %for.body, label %for.end.loopexit.ur-lcssa
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for.end.loopexit.ur-lcssa:
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%1 = icmp eq i32 %inc.7, %N
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br i1 %1, label %for.end, label %for.body.ur.preheader
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for.body.ur.preheader:
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%arrayidx.phi.ur.ph = phi i32* [ %C, %for.body.preheader ], [ %arrayidx.inc.7, %for.end.loopexit.ur-lcssa ]
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%i.05.ur.ph = phi i32 [ 0, %for.body.preheader ], [ %inc.7, %for.end.loopexit.ur-lcssa ]
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br label %for.body.ur
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for.body.ur:
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%arrayidx.phi.ur = phi i32* [ %arrayidx.inc.ur, %for.body.ur ], [ %arrayidx.phi.ur.ph, %for.body.ur.preheader ]
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%i.05.ur = phi i32 [ %inc.ur, %for.body.ur ], [ %i.05.ur.ph, %for.body.ur.preheader ]
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store i32 %i.05.ur, i32* %arrayidx.phi.ur, align 4
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%inc.ur = add i32 %i.05.ur, 1
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%exitcond.ur = icmp eq i32 %inc.ur, %N
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%arrayidx.inc.ur = getelementptr i32, i32* %arrayidx.phi.ur, i32 1
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br i1 %exitcond.ur, label %for.end.loopexit, label %for.body.ur
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for.end.loopexit:
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br label %for.end
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for.end:
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ret void
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}
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