50 lines
1.4 KiB
LLVM
50 lines
1.4 KiB
LLVM
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; RUN: llc -mtriple=thumbv7m-none-eabi %s -mcpu=cortex-m3 -o - | FileCheck %s
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; RUN: llc -mtriple=thumbv7m-none-eabi %s -mcpu=cortex-m4 -o - | FileCheck %s
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; RUN: llc -mtriple=thumbv8m-none-eabi %s -mcpu=cortex-m33 -o - | FileCheck %s
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define void @test_loop_alignment(i32* %in, i32* %out) optsize {
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; CHECK-LABEL: test_loop_alignment:
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; CHECK: mov{{.*}}, #0
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; CHECK: .p2align 2
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entry:
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br label %loop
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loop:
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%i = phi i32 [ 0, %entry ], [ %i.next, %loop ]
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%in.addr = getelementptr inbounds i32, i32* %in, i32 %i
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%lhs = load i32, i32* %in.addr, align 4
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%res = mul nsw i32 %lhs, 5
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%out.addr = getelementptr inbounds i32, i32* %out, i32 %i
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store i32 %res, i32* %out.addr, align 4
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%i.next = add i32 %i, 1
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%done = icmp eq i32 %i.next, 1024
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br i1 %done, label %end, label %loop
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end:
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ret void
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}
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define void @test_loop_alignment_minsize(i32* %in, i32* %out) minsize {
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; CHECK-LABEL: test_loop_alignment_minsize:
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; CHECK: movs {{r[0-9]+}}, #0
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; CHECK-NOT: .p2align
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entry:
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br label %loop
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loop:
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%i = phi i32 [ 0, %entry ], [ %i.next, %loop ]
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%in.addr = getelementptr inbounds i32, i32* %in, i32 %i
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%lhs = load i32, i32* %in.addr, align 4
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%res = mul nsw i32 %lhs, 5
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%out.addr = getelementptr inbounds i32, i32* %out, i32 %i
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store i32 %res, i32* %out.addr, align 4
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%i.next = add i32 %i, 1
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%done = icmp eq i32 %i.next, 1024
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br i1 %done, label %end, label %loop
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end:
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ret void
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}
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