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34 lines
1.0 KiB
34 lines
1.0 KiB
4 months ago
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# RUN: llc -O0 -mtriple arm-- -mattr=+v6 -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,ARM
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# RUN: llc -O0 -mtriple thumb-- -mattr=+v6t2 -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,THUMB
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--- |
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define void @test_clz() { ret void }
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...
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---
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name: test_clz
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# CHECK-LABEL: name: test_clz
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legalized: true
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regBankSelected: true
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selected: false
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# CHECK: selected: true
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registers:
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- { id: 0, class: gprb }
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- { id: 1, class: gprb }
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body: |
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bb.0:
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liveins: $r0
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%0(s32) = COPY $r0
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; ARM: [[VREGX:%[0-9]+]]:gpr = COPY $r0
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; THUMB: [[VREGX:%[0-9]+]]:rgpr = COPY $r0
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%1(s32) = G_CTLZ %0(s32)
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; ARM: [[VREGR:%[0-9]+]]:gpr = CLZ [[VREGX]], 14 /* CC::al */, $noreg
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; THUMB: [[VREGR:%[0-9]+]]:rgpr = t2CLZ [[VREGX]], 14 /* CC::al */, $noreg
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$r0 = COPY %1(s32)
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; CHECK: $r0 = COPY [[VREGR]]
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BX_RET 14, $noreg, implicit $r0
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; CHECK: BX_RET 14 /* CC::al */, $noreg, implicit $r0
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...
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