2017-05-03 06:45:19 +08:00
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; RUN: llc -mtriple=arm %s -o - | FileCheck %s
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; RUN: llc -mtriple=thumbv7 %s -o - | FileCheck %s
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; We ended up feeding a deleted node back to TableGen when we converted "Off *
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; 410" into "(Off * 205) << 1", where the multiplication already existed in the
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; DAG.
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; CHECK-LABEL: addrmode_cse_mutation:
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; CHECK: {{mul|muls}} [[OFFSET:r[0-9]+]], {{r[0-9]+}}, {{r[0-9]+}}
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; CHECK: {{ldrb|ldrb.w}} {{r[0-9]+}}, [r0, [[OFFSET]], lsl #3]
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define i32 @addrmode_cse_mutation(i8* %base, i32 %count) {
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%offset = mul i32 %count, 277288
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%ptr = getelementptr i8, i8* %base, i32 %offset
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%val = load volatile i8, i8* %ptr
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%res = mul i32 %count, 34661
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ret i32 %res
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}
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2017-05-04 00:54:30 +08:00
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; CHECK-LABEL: addrmode_cse_multi_use:
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; CHECK-NOT: {{ldrb|ldrb.w}} {{r[0-9]+}}, [{{r[0-9]+}}, {{r[0-9]+}}, lsl #3]
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define i32 @addrmode_cse_multi_use(i8* %base, i32 %count) {
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%offset = mul i32 %count, 277288
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%ptr = getelementptr i8, i8* %base, i32 %offset
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%val = load volatile i8, i8* %ptr
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%res = mul i32 %count, 34661
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%res.1 = add i32 %res, %offset
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ret i32 %res.1
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}
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