160 lines
3.8 KiB
LLVM
160 lines
3.8 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mtriple=thumbv6m-eabi -asm-verbose=false %s -o - | FileCheck %s --check-prefix=V6M
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define i32 @uxth(i32 %x) {
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; V6M-LABEL: uxth:
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; V6M: uxth r0, r0
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; V6M-NEXT: bx lr
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%xn = and i32 %x, 65535
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ret i32 %xn
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}
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define i32 @uxtb(i32 %x) {
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; V6M-LABEL: uxtb:
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; V6M: uxtb r0, r0
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; V6M-NEXT: bx lr
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%xn = and i32 %x, 255
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ret i32 %xn
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}
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define i32 @uxth_2(i32 %x, i32 %y) {
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; V6M-LABEL: uxth_2:
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; V6M: uxth r1, r1
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; V6M-NEXT: uxth r0, r0
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; V6M-NEXT: muls r0, r1, r0
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; V6M-NEXT: bx lr
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%xn = and i32 %x, 65535
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%yn = and i32 %y, 65535
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%r = mul nuw i32 %xn, %yn
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ret i32 %r
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}
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define i32 @uxtb_2(i32 %x, i32 %y) {
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; V6M-LABEL: uxtb_2:
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; V6M: uxtb r1, r1
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; V6M-NEXT: uxtb r0, r0
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; V6M-NEXT: muls r0, r1, r0
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; V6M-NEXT: bx lr
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%xn = and i32 %x, 255
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%yn = and i32 %y, 255
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%r = mul nuw nsw i32 %xn, %yn
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ret i32 %r
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}
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define void @uxth_loop(i32* %a, i32 %n) {
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; V6M-LABEL: uxth_loop:
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; V6M: .LBB4_1:
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; V6M-NEXT: ldrh r2, [r0]
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; V6M-NEXT: stm r0!, {r2}
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; V6M-NEXT: subs r1, r1, #1
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; V6M-NEXT: bne .LBB4_1
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; V6M-NEXT: bx lr
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entry:
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br label %for.body
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for.body:
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%i = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%arrayidx = getelementptr inbounds i32, i32* %a, i32 %i
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%x = load i32, i32* %arrayidx
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%xn = and i32 %x, 65535
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store i32 %xn, i32* %arrayidx
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%inc = add nuw nsw i32 %i, 1
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%exitcond = icmp eq i32 %inc, %n
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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for.cond.cleanup:
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ret void
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}
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define void @uxth_loop_2(i32* %a, i32 %n) {
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; V6M-LABEL: uxth_loop_2:
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; V6M: .save {r4, lr}
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; V6M-NEXT: push {r4, lr}
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; V6M-NEXT: movs r2, #0
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; V6M-NEXT: .LBB5_1:
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; V6M-NEXT: uxth r3, r2
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; V6M-NEXT: ldrh r4, [r0]
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; V6M-NEXT: muls r4, r3, r4
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; V6M-NEXT: stm r0!, {r4}
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; V6M-NEXT: adds r2, r2, #1
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; V6M-NEXT: cmp r1, r2
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; V6M-NEXT: bne .LBB5_1
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; V6M-NEXT: pop {r4, pc}
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entry:
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br label %for.body
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for.body:
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%i = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%arrayidx = getelementptr inbounds i32, i32* %a, i32 %i
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%x = load i32, i32* %arrayidx
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%xn = and i32 %x, 65535
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%in = and i32 %i, 65535
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%s = mul i32 %xn, %in
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store i32 %s, i32* %arrayidx
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%inc = add nuw nsw i32 %i, 1
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%exitcond = icmp eq i32 %inc, %n
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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for.cond.cleanup:
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ret void
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}
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define void @uxtb_loop(i32* %a, i32 %n) {
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; V6M-LABEL: uxtb_loop:
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; V6M: .LBB6_1:
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; V6M-NEXT: ldrb r2, [r0]
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; V6M-NEXT: stm r0!, {r2}
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; V6M-NEXT: subs r1, r1, #1
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; V6M-NEXT: bne .LBB6_1
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; V6M-NEXT: bx lr
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entry:
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br label %for.body
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for.body:
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%i = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%arrayidx = getelementptr inbounds i32, i32* %a, i32 %i
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%x = load i32, i32* %arrayidx
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%xn = and i32 %x, 255
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store i32 %xn, i32* %arrayidx
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%inc = add nuw nsw i32 %i, 1
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%exitcond = icmp eq i32 %inc, %n
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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for.cond.cleanup:
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ret void
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}
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define void @uxtb_loop_2(i32* %a, i32 %n) {
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; V6M-LABEL: uxtb_loop_2:
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; V6M: .save {r4, lr}
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; V6M-NEXT: push {r4, lr}
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; V6M-NEXT: movs r2, #0
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; V6M-NEXT: .LBB7_1:
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; V6M-NEXT: uxtb r3, r2
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; V6M-NEXT: ldrb r4, [r0]
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; V6M-NEXT: muls r4, r3, r4
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; V6M-NEXT: stm r0!, {r4}
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; V6M-NEXT: adds r2, r2, #1
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; V6M-NEXT: cmp r1, r2
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; V6M-NEXT: bne .LBB7_1
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; V6M-NEXT: pop {r4, pc}
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entry:
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br label %for.body
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for.body:
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%i = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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%arrayidx = getelementptr inbounds i32, i32* %a, i32 %i
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%x = load i32, i32* %arrayidx
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%xn = and i32 %x, 255
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%in = and i32 %i, 255
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%s = mul i32 %xn, %in
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store i32 %s, i32* %arrayidx
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%inc = add nuw nsw i32 %i, 1
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%exitcond = icmp eq i32 %inc, %n
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br i1 %exitcond, label %for.cond.cleanup, label %for.body
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for.cond.cleanup:
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ret void
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}
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