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v811_spc009/external/llvm-project/llvm/test/CodeGen/ARM/ParallelDSP/multi-use-loads.ll

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v811_spc009_project
4 months ago
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -O3 -mtriple=arm-arm-eabi -mcpu=cortex-m33 < %s | FileCheck %s --check-prefixes=CHECK-LE
; RUN: llc -O3 -mtriple=armeb-arm-eabi -mcpu=cortex-m33 < %s | FileCheck %s --check-prefixes=CHECK-BE
define i32 @add_user(i32 %arg, i32* nocapture readnone %arg1, i16* nocapture readonly %arg2, i16* nocapture readonly %arg3) {
; CHECK-LE-LABEL: add_user:
; CHECK-LE: @ %bb.0: @ %entry
; CHECK-LE-NEXT: .save {r4, lr}
; CHECK-LE-NEXT: push {r4, lr}
; CHECK-LE-NEXT: cmp r0, #1
; CHECK-LE-NEXT: blt .LBB0_4
; CHECK-LE-NEXT: @ %bb.1: @ %for.body.preheader
; CHECK-LE-NEXT: subs r2, #2
; CHECK-LE-NEXT: subs r3, #2
; CHECK-LE-NEXT: mov.w r12, #0
; CHECK-LE-NEXT: movs r1, #0
; CHECK-LE-NEXT: .p2align 2
; CHECK-LE-NEXT: .LBB0_2: @ %for.body
; CHECK-LE-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-LE-NEXT: ldr lr, [r3, #2]!
; CHECK-LE-NEXT: ldr r4, [r2, #2]!
; CHECK-LE-NEXT: subs r0, #1
; CHECK-LE-NEXT: smlad r12, r4, lr, r12
; CHECK-LE-NEXT: sxtah r1, r1, lr
; CHECK-LE-NEXT: bne .LBB0_2
; CHECK-LE-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-LE-NEXT: add.w r0, r12, r1
; CHECK-LE-NEXT: pop {r4, pc}
; CHECK-LE-NEXT: .LBB0_4:
; CHECK-LE-NEXT: mov.w r12, #0
; CHECK-LE-NEXT: movs r1, #0
; CHECK-LE-NEXT: add.w r0, r12, r1
; CHECK-LE-NEXT: pop {r4, pc}
;
; CHECK-BE-LABEL: add_user:
; CHECK-BE: @ %bb.0: @ %entry
; CHECK-BE-NEXT: .save {r4, r5, r6, lr}
; CHECK-BE-NEXT: push {r4, r5, r6, lr}
; CHECK-BE-NEXT: cmp r0, #1
; CHECK-BE-NEXT: blt .LBB0_4
; CHECK-BE-NEXT: @ %bb.1: @ %for.body.preheader
; CHECK-BE-NEXT: subs r2, #2
; CHECK-BE-NEXT: subs r3, #2
; CHECK-BE-NEXT: mov.w r12, #0
; CHECK-BE-NEXT: movs r1, #0
; CHECK-BE-NEXT: .p2align 2
; CHECK-BE-NEXT: .LBB0_2: @ %for.body
; CHECK-BE-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-BE-NEXT: ldrsh lr, [r3, #2]!
; CHECK-BE-NEXT: ldrsh r5, [r2, #2]!
; CHECK-BE-NEXT: ldrsh.w r4, [r3, #2]
; CHECK-BE-NEXT: ldrsh.w r6, [r2, #2]
; CHECK-BE-NEXT: smlabb r5, r5, lr, r12
; CHECK-BE-NEXT: add r1, lr
; CHECK-BE-NEXT: subs r0, #1
; CHECK-BE-NEXT: smlabb r12, r6, r4, r5
; CHECK-BE-NEXT: bne .LBB0_2
; CHECK-BE-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-BE-NEXT: add.w r0, r12, r1
; CHECK-BE-NEXT: pop {r4, r5, r6, pc}
; CHECK-BE-NEXT: .LBB0_4:
; CHECK-BE-NEXT: mov.w r12, #0
; CHECK-BE-NEXT: movs r1, #0
; CHECK-BE-NEXT: add.w r0, r12, r1
; CHECK-BE-NEXT: pop {r4, r5, r6, pc}
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 ]
%count.final = phi i32 [ 0, %entry ], [ %count.next, %for.body ]
%res = add i32 %mac1.0.lcssa, %count.final
ret i32 %res
for.body:
%mac1.026 = phi i32 [ %add11, %for.body ], [ 0, %for.body.preheader ]
%i.025 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
%count = phi i32 [ %count.next, %for.body ], [ 0, %for.body.preheader ]
%arrayidx = getelementptr inbounds i16, i16* %arg3, i32 %i.025
%0 = load i16, i16* %arrayidx, align 2
%add = add nuw nsw i32 %i.025, 1
%arrayidx1 = getelementptr inbounds i16, i16* %arg3, i32 %add
%1 = load i16, i16* %arrayidx1, align 2
%arrayidx3 = getelementptr inbounds i16, i16* %arg2, i32 %i.025
%2 = load i16, i16* %arrayidx3, align 2
%conv = sext i16 %2 to i32
%conv4 = sext i16 %0 to i32
%count.next = add i32 %conv4, %count
%mul = mul nsw i32 %conv, %conv4
%arrayidx6 = getelementptr inbounds i16, i16* %arg2, i32 %add
%3 = load i16, i16* %arrayidx6, align 2
%conv7 = sext i16 %3 to i32
%conv8 = sext i16 %1 to i32
%mul9 = mul nsw i32 %conv7, %conv8
%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
}
define i32 @mul_bottom_user(i32 %arg, i32* nocapture readnone %arg1, i16* nocapture readonly %arg2, i16* nocapture readonly %arg3) {
; CHECK-LE-LABEL: mul_bottom_user:
; CHECK-LE: @ %bb.0: @ %entry
; CHECK-LE-NEXT: .save {r4, r5, r7, lr}
; CHECK-LE-NEXT: push {r4, r5, r7, lr}
; CHECK-LE-NEXT: cmp r0, #1
; CHECK-LE-NEXT: blt .LBB1_4
; CHECK-LE-NEXT: @ %bb.1: @ %for.body.preheader
; CHECK-LE-NEXT: sub.w lr, r2, #2
; CHECK-LE-NEXT: subs r3, #2
; CHECK-LE-NEXT: mov.w r12, #0
; CHECK-LE-NEXT: movs r1, #0
; CHECK-LE-NEXT: .p2align 2
; CHECK-LE-NEXT: .LBB1_2: @ %for.body
; CHECK-LE-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-LE-NEXT: ldr r2, [r3, #2]!
; CHECK-LE-NEXT: ldr r4, [lr, #2]!
; CHECK-LE-NEXT: sxth r5, r2
; CHECK-LE-NEXT: smlad r12, r4, r2, r12
; CHECK-LE-NEXT: subs r0, #1
; CHECK-LE-NEXT: mul r1, r5, r1
; CHECK-LE-NEXT: bne .LBB1_2
; CHECK-LE-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-LE-NEXT: add.w r0, r12, r1
; CHECK-LE-NEXT: pop {r4, r5, r7, pc}
; CHECK-LE-NEXT: .LBB1_4:
; CHECK-LE-NEXT: mov.w r12, #0
; CHECK-LE-NEXT: movs r1, #0
; CHECK-LE-NEXT: add.w r0, r12, r1
; CHECK-LE-NEXT: pop {r4, r5, r7, pc}
;
; CHECK-BE-LABEL: mul_bottom_user:
; CHECK-BE: @ %bb.0: @ %entry
; CHECK-BE-NEXT: .save {r4, r5, r6, lr}
; CHECK-BE-NEXT: push {r4, r5, r6, lr}
; CHECK-BE-NEXT: cmp r0, #1
; CHECK-BE-NEXT: blt .LBB1_4
; CHECK-BE-NEXT: @ %bb.1: @ %for.body.preheader
; CHECK-BE-NEXT: subs r2, #2
; CHECK-BE-NEXT: subs r3, #2
; CHECK-BE-NEXT: mov.w r12, #0
; CHECK-BE-NEXT: movs r1, #0
; CHECK-BE-NEXT: .p2align 2
; CHECK-BE-NEXT: .LBB1_2: @ %for.body
; CHECK-BE-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-BE-NEXT: ldrsh lr, [r3, #2]!
; CHECK-BE-NEXT: ldrsh r4, [r2, #2]!
; CHECK-BE-NEXT: ldrsh.w r5, [r3, #2]
; CHECK-BE-NEXT: ldrsh.w r6, [r2, #2]
; CHECK-BE-NEXT: smlabb r4, r4, lr, r12
; CHECK-BE-NEXT: smlabb r12, r6, r5, r4
; CHECK-BE-NEXT: subs r0, #1
; CHECK-BE-NEXT: mul r1, lr, r1
; CHECK-BE-NEXT: bne .LBB1_2
; CHECK-BE-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-BE-NEXT: add.w r0, r12, r1
; CHECK-BE-NEXT: pop {r4, r5, r6, pc}
; CHECK-BE-NEXT: .LBB1_4:
; CHECK-BE-NEXT: mov.w r12, #0
; CHECK-BE-NEXT: movs r1, #0
; CHECK-BE-NEXT: add.w r0, r12, r1
; CHECK-BE-NEXT: pop {r4, r5, r6, pc}
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 ]
%count.final = phi i32 [ 0, %entry ], [ %count.next, %for.body ]
%res = add i32 %mac1.0.lcssa, %count.final
ret i32 %res
for.body:
%mac1.026 = phi i32 [ %add11, %for.body ], [ 0, %for.body.preheader ]
%i.025 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
%count = phi i32 [ %count.next, %for.body ], [ 0, %for.body.preheader ]
%arrayidx = getelementptr inbounds i16, i16* %arg3, i32 %i.025
%0 = load i16, i16* %arrayidx, align 2
%add = add nuw nsw i32 %i.025, 1
%arrayidx1 = getelementptr inbounds i16, i16* %arg3, i32 %add
%1 = load i16, i16* %arrayidx1, align 2
%arrayidx3 = getelementptr inbounds i16, i16* %arg2, i32 %i.025
%2 = load i16, i16* %arrayidx3, align 2
%conv = sext i16 %2 to i32
%conv4 = sext i16 %0 to i32
%mul = mul nsw i32 %conv, %conv4
%arrayidx6 = getelementptr inbounds i16, i16* %arg2, i32 %add
%3 = load i16, i16* %arrayidx6, align 2
%conv7 = sext i16 %3 to i32
%conv8 = sext i16 %1 to i32
%mul9 = mul nsw i32 %conv7, %conv8
%add10 = add i32 %mul, %mac1.026
%add11 = add i32 %mul9, %add10
%count.next = mul i32 %conv4, %count
%exitcond = icmp ne i32 %add, %arg
br i1 %exitcond, label %for.body, label %for.cond.cleanup
}
define i32 @mul_top_user(i32 %arg, i32* nocapture readnone %arg1, i16* nocapture readonly %arg2, i16* nocapture readonly %arg3) {
; CHECK-LE-LABEL: mul_top_user:
; CHECK-LE: @ %bb.0: @ %entry
; CHECK-LE-NEXT: .save {r4, lr}
; CHECK-LE-NEXT: push {r4, lr}
; CHECK-LE-NEXT: cmp r0, #1
; CHECK-LE-NEXT: blt .LBB2_4
; CHECK-LE-NEXT: @ %bb.1: @ %for.body.preheader
; CHECK-LE-NEXT: subs r2, #2
; CHECK-LE-NEXT: subs r3, #2
; CHECK-LE-NEXT: mov.w r12, #0
; CHECK-LE-NEXT: movs r1, #0
; CHECK-LE-NEXT: .p2align 2
; CHECK-LE-NEXT: .LBB2_2: @ %for.body
; CHECK-LE-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-LE-NEXT: ldr lr, [r3, #2]!
; CHECK-LE-NEXT: ldr r4, [r2, #2]!
; CHECK-LE-NEXT: subs r0, #1
; CHECK-LE-NEXT: smlad r12, r4, lr, r12
; CHECK-LE-NEXT: asr.w r4, r4, #16
; CHECK-LE-NEXT: mul r1, r4, r1
; CHECK-LE-NEXT: bne .LBB2_2
; CHECK-LE-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-LE-NEXT: add.w r0, r12, r1
; CHECK-LE-NEXT: pop {r4, pc}
; CHECK-LE-NEXT: .LBB2_4:
; CHECK-LE-NEXT: mov.w r12, #0
; CHECK-LE-NEXT: movs r1, #0
; CHECK-LE-NEXT: add.w r0, r12, r1
; CHECK-LE-NEXT: pop {r4, pc}
;
; CHECK-BE-LABEL: mul_top_user:
; CHECK-BE: @ %bb.0: @ %entry
; CHECK-BE-NEXT: .save {r4, r5, r6, lr}
; CHECK-BE-NEXT: push {r4, r5, r6, lr}
; CHECK-BE-NEXT: cmp r0, #1
; CHECK-BE-NEXT: blt .LBB2_4
; CHECK-BE-NEXT: @ %bb.1: @ %for.body.preheader
; CHECK-BE-NEXT: subs r2, #2
; CHECK-BE-NEXT: subs r3, #2
; CHECK-BE-NEXT: mov.w r12, #0
; CHECK-BE-NEXT: movs r1, #0
; CHECK-BE-NEXT: .p2align 2
; CHECK-BE-NEXT: .LBB2_2: @ %for.body
; CHECK-BE-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-BE-NEXT: ldrsh lr, [r3, #2]!
; CHECK-BE-NEXT: ldrsh r4, [r2, #2]!
; CHECK-BE-NEXT: ldrsh.w r5, [r3, #2]
; CHECK-BE-NEXT: ldrsh.w r6, [r2, #2]
; CHECK-BE-NEXT: smlabb r4, r4, lr, r12
; CHECK-BE-NEXT: smlabb r12, r6, r5, r4
; CHECK-BE-NEXT: subs r0, #1
; CHECK-BE-NEXT: mul r1, r6, r1
; CHECK-BE-NEXT: bne .LBB2_2
; CHECK-BE-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-BE-NEXT: add.w r0, r12, r1
; CHECK-BE-NEXT: pop {r4, r5, r6, pc}
; CHECK-BE-NEXT: .LBB2_4:
; CHECK-BE-NEXT: mov.w r12, #0
; CHECK-BE-NEXT: movs r1, #0
; CHECK-BE-NEXT: add.w r0, r12, r1
; CHECK-BE-NEXT: pop {r4, r5, r6, pc}
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 ]
%count.final = phi i32 [ 0, %entry ], [ %count.next, %for.body ]
%res = add i32 %mac1.0.lcssa, %count.final
ret i32 %res
for.body:
%mac1.026 = phi i32 [ %add11, %for.body ], [ 0, %for.body.preheader ]
%i.025 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
%count = phi i32 [ %count.next, %for.body ], [ 0, %for.body.preheader ]
%arrayidx = getelementptr inbounds i16, i16* %arg3, i32 %i.025
%0 = load i16, i16* %arrayidx, align 2
%add = add nuw nsw i32 %i.025, 1
%arrayidx1 = getelementptr inbounds i16, i16* %arg3, i32 %add
%1 = load i16, i16* %arrayidx1, align 2
%arrayidx3 = getelementptr inbounds i16, i16* %arg2, i32 %i.025
%2 = load i16, i16* %arrayidx3, align 2
%conv = sext i16 %2 to i32
%conv4 = sext i16 %0 to i32
%mul = mul nsw i32 %conv, %conv4
%arrayidx6 = getelementptr inbounds i16, i16* %arg2, i32 %add
%3 = load i16, i16* %arrayidx6, align 2
%conv7 = sext i16 %3 to i32
%conv8 = sext i16 %1 to i32
%mul9 = mul nsw i32 %conv7, %conv8
%add10 = add i32 %mul, %mac1.026
%add11 = add i32 %mul9, %add10
%count.next = mul i32 %conv7, %count
%exitcond = icmp ne i32 %add, %arg
br i1 %exitcond, label %for.body, label %for.cond.cleanup
}
define i32 @and_user(i32 %arg, i32* nocapture readnone %arg1, i16* nocapture readonly %arg2, i16* nocapture readonly %arg3) {
; CHECK-LE-LABEL: and_user:
; CHECK-LE: @ %bb.0: @ %entry
; CHECK-LE-NEXT: .save {r4, lr}
; CHECK-LE-NEXT: push {r4, lr}
; CHECK-LE-NEXT: cmp r0, #1
; CHECK-LE-NEXT: blt .LBB3_4
; CHECK-LE-NEXT: @ %bb.1: @ %for.body.preheader
; CHECK-LE-NEXT: sub.w lr, r2, #2
; CHECK-LE-NEXT: subs r3, #2
; CHECK-LE-NEXT: mov.w r12, #0
; CHECK-LE-NEXT: movs r1, #0
; CHECK-LE-NEXT: .p2align 2
; CHECK-LE-NEXT: .LBB3_2: @ %for.body
; CHECK-LE-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-LE-NEXT: ldr r2, [r3, #2]!
; CHECK-LE-NEXT: ldr r4, [lr, #2]!
; CHECK-LE-NEXT: subs r0, #1
; CHECK-LE-NEXT: smlad r12, r4, r2, r12
; CHECK-LE-NEXT: uxth r2, r2
; CHECK-LE-NEXT: mul r1, r2, r1
; CHECK-LE-NEXT: bne .LBB3_2
; CHECK-LE-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-LE-NEXT: add.w r0, r12, r1
; CHECK-LE-NEXT: pop {r4, pc}
; CHECK-LE-NEXT: .LBB3_4:
; CHECK-LE-NEXT: mov.w r12, #0
; CHECK-LE-NEXT: movs r1, #0
; CHECK-LE-NEXT: add.w r0, r12, r1
; CHECK-LE-NEXT: pop {r4, pc}
;
; CHECK-BE-LABEL: and_user:
; CHECK-BE: @ %bb.0: @ %entry
; CHECK-BE-NEXT: .save {r4, r5, r6, lr}
; CHECK-BE-NEXT: push {r4, r5, r6, lr}
; CHECK-BE-NEXT: cmp r0, #1
; CHECK-BE-NEXT: blt .LBB3_4
; CHECK-BE-NEXT: @ %bb.1: @ %for.body.preheader
; CHECK-BE-NEXT: subs r2, #2
; CHECK-BE-NEXT: subs r3, #2
; CHECK-BE-NEXT: mov.w r12, #0
; CHECK-BE-NEXT: movs r1, #0
; CHECK-BE-NEXT: .p2align 2
; CHECK-BE-NEXT: .LBB3_2: @ %for.body
; CHECK-BE-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-BE-NEXT: ldrh lr, [r3, #2]!
; CHECK-BE-NEXT: ldrsh r4, [r2, #2]!
; CHECK-BE-NEXT: ldrsh.w r5, [r3, #2]
; CHECK-BE-NEXT: ldrsh.w r6, [r2, #2]
; CHECK-BE-NEXT: smlabb r4, r4, lr, r12
; CHECK-BE-NEXT: smlabb r12, r6, r5, r4
; CHECK-BE-NEXT: subs r0, #1
; CHECK-BE-NEXT: mul r1, lr, r1
; CHECK-BE-NEXT: bne .LBB3_2
; CHECK-BE-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-BE-NEXT: add.w r0, r12, r1
; CHECK-BE-NEXT: pop {r4, r5, r6, pc}
; CHECK-BE-NEXT: .LBB3_4:
; CHECK-BE-NEXT: mov.w r12, #0
; CHECK-BE-NEXT: movs r1, #0
; CHECK-BE-NEXT: add.w r0, r12, r1
; CHECK-BE-NEXT: pop {r4, r5, r6, pc}
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 ]
%count.final = phi i32 [ 0, %entry ], [ %count.next, %for.body ]
%res = add i32 %mac1.0.lcssa, %count.final
ret i32 %res
for.body:
%mac1.026 = phi i32 [ %add11, %for.body ], [ 0, %for.body.preheader ]
%i.025 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
%count = phi i32 [ %count.next, %for.body ], [ 0, %for.body.preheader ]
%arrayidx = getelementptr inbounds i16, i16* %arg3, i32 %i.025
%0 = load i16, i16* %arrayidx, align 2
%add = add nuw nsw i32 %i.025, 1
%arrayidx1 = getelementptr inbounds i16, i16* %arg3, i32 %add
%arrayidx3 = getelementptr inbounds i16, i16* %arg2, i32 %i.025
%arrayidx6 = getelementptr inbounds i16, i16* %arg2, i32 %add
%1 = load i16, i16* %arrayidx1, align 2
%2 = load i16, i16* %arrayidx3, align 2
%conv = sext i16 %2 to i32
%conv4 = sext i16 %0 to i32
%bottom = and i32 %conv4, 65535
%mul = mul nsw i32 %conv, %conv4
%3 = load i16, i16* %arrayidx6, align 2
%conv7 = sext i16 %3 to i32
%conv8 = sext i16 %1 to i32
%mul9 = mul nsw i32 %conv7, %conv8
%add10 = add i32 %mul, %mac1.026
%add11 = add i32 %mul9, %add10
%count.next = mul i32 %bottom, %count
%exitcond = icmp ne i32 %add, %arg
br i1 %exitcond, label %for.body, label %for.cond.cleanup
}
define i32 @multi_uses(i32 %arg, i32* nocapture readnone %arg1, i16* nocapture readonly %arg2, i16* nocapture readonly %arg3) {
; CHECK-LE-LABEL: multi_uses:
; CHECK-LE: @ %bb.0: @ %entry
; CHECK-LE-NEXT: .save {r4, lr}
; CHECK-LE-NEXT: push {r4, lr}
; CHECK-LE-NEXT: cmp r0, #1
; CHECK-LE-NEXT: blt .LBB4_4
; CHECK-LE-NEXT: @ %bb.1: @ %for.body.preheader
; CHECK-LE-NEXT: subs r2, #2
; CHECK-LE-NEXT: subs r3, #2
; CHECK-LE-NEXT: mov.w lr, #0
; CHECK-LE-NEXT: mov.w r12, #0
; CHECK-LE-NEXT: .p2align 2
; CHECK-LE-NEXT: .LBB4_2: @ %for.body
; CHECK-LE-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-LE-NEXT: ldr r1, [r3, #2]!
; CHECK-LE-NEXT: ldr r4, [r2, #2]!
; CHECK-LE-NEXT: subs r0, #1
; CHECK-LE-NEXT: smlad lr, r4, r1, lr
; CHECK-LE-NEXT: eor.w r4, r1, r12
; CHECK-LE-NEXT: mul r1, r4, r1
; CHECK-LE-NEXT: lsl.w r12, r1, #16
; CHECK-LE-NEXT: bne .LBB4_2
; CHECK-LE-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-LE-NEXT: add.w r0, lr, r12
; CHECK-LE-NEXT: pop {r4, pc}
; CHECK-LE-NEXT: .LBB4_4:
; CHECK-LE-NEXT: mov.w lr, #0
; CHECK-LE-NEXT: mov.w r12, #0
; CHECK-LE-NEXT: add.w r0, lr, r12
; CHECK-LE-NEXT: pop {r4, pc}
;
; CHECK-BE-LABEL: multi_uses:
; CHECK-BE: @ %bb.0: @ %entry
; CHECK-BE-NEXT: .save {r4, r5, r6, lr}
; CHECK-BE-NEXT: push {r4, r5, r6, lr}
; CHECK-BE-NEXT: cmp r0, #1
; CHECK-BE-NEXT: blt .LBB4_4
; CHECK-BE-NEXT: @ %bb.1: @ %for.body.preheader
; CHECK-BE-NEXT: subs r2, #2
; CHECK-BE-NEXT: subs r3, #2
; CHECK-BE-NEXT: mov.w r12, #0
; CHECK-BE-NEXT: mov.w lr, #0
; CHECK-BE-NEXT: .p2align 2
; CHECK-BE-NEXT: .LBB4_2: @ %for.body
; CHECK-BE-NEXT: @ =>This Inner Loop Header: Depth=1
; CHECK-BE-NEXT: ldrsh r1, [r3, #2]!
; CHECK-BE-NEXT: ldrsh r4, [r2, #2]!
; CHECK-BE-NEXT: ldrsh.w r5, [r3, #2]
; CHECK-BE-NEXT: ldrsh.w r6, [r2, #2]
; CHECK-BE-NEXT: smlabb r4, r4, r1, r12
; CHECK-BE-NEXT: smlabb r12, r6, r5, r4
; CHECK-BE-NEXT: eor.w r6, r1, lr
; CHECK-BE-NEXT: muls r1, r6, r1
; CHECK-BE-NEXT: subs r0, #1
; CHECK-BE-NEXT: lsl.w lr, r1, #16
; CHECK-BE-NEXT: bne .LBB4_2
; CHECK-BE-NEXT: @ %bb.3: @ %for.cond.cleanup
; CHECK-BE-NEXT: add.w r0, r12, lr
; CHECK-BE-NEXT: pop {r4, r5, r6, pc}
; CHECK-BE-NEXT: .LBB4_4:
; CHECK-BE-NEXT: mov.w r12, #0
; CHECK-BE-NEXT: mov.w lr, #0
; CHECK-BE-NEXT: add.w r0, r12, lr
; CHECK-BE-NEXT: pop {r4, r5, r6, pc}
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 ]
%count.final = phi i32 [ 0, %entry ], [ %count.next, %for.body ]
%res = add i32 %mac1.0.lcssa, %count.final
ret i32 %res
for.body:
%mac1.026 = phi i32 [ %add11, %for.body ], [ 0, %for.body.preheader ]
%i.025 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
%count = phi i32 [ %count.next, %for.body ], [ 0, %for.body.preheader ]
%arrayidx = getelementptr inbounds i16, i16* %arg3, i32 %i.025
%0 = load i16, i16* %arrayidx, align 2
%add = add nuw nsw i32 %i.025, 1
%arrayidx1 = getelementptr inbounds i16, i16* %arg3, i32 %add
%arrayidx3 = getelementptr inbounds i16, i16* %arg2, i32 %i.025
%arrayidx6 = getelementptr inbounds i16, i16* %arg2, i32 %add
%1 = load i16, i16* %arrayidx1, align 2
%2 = load i16, i16* %arrayidx3, align 2
%conv = sext i16 %2 to i32
%conv4 = sext i16 %0 to i32
%bottom = and i32 %conv4, 65535
%mul = mul nsw i32 %conv, %conv4
%3 = load i16, i16* %arrayidx6, align 2
%conv7 = sext i16 %3 to i32
%conv8 = sext i16 %1 to i32
%mul9 = mul nsw i32 %conv7, %conv8
%add10 = add i32 %mul, %mac1.026
%shl = shl i32 %conv4, 16
%add11 = add i32 %mul9, %add10
%xor = xor i32 %bottom, %count
%count.next = mul i32 %xor, %shl
%exitcond = icmp ne i32 %add, %arg
br i1 %exitcond, label %for.body, label %for.cond.cleanup
}