xref: /llvm-project/llvm/test/CodeGen/ARM/GlobalISel/select-clz.mir (revision 7efabe5c7de46fe190638741c6ee81ae13255e38)
154829ec5SDiana Picus# RUN: llc -O0 -mtriple arm-- -mattr=+v6 -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,ARM
254829ec5SDiana Picus# RUN: llc -O0 -mtriple thumb-- -mattr=+v6t2 -run-pass=instruction-select -verify-machineinstrs %s -o - | FileCheck %s --check-prefixes=CHECK,THUMB
354829ec5SDiana Picus--- |
454829ec5SDiana Picus  define void @test_clz() { ret void }
554829ec5SDiana Picus...
654829ec5SDiana Picus---
754829ec5SDiana Picusname:            test_clz
854829ec5SDiana Picus# CHECK-LABEL: name: test_clz
954829ec5SDiana Picuslegalized:       true
1054829ec5SDiana PicusregBankSelected: true
1154829ec5SDiana Picusselected:        false
1254829ec5SDiana Picus# CHECK: selected: true
1354829ec5SDiana Picusregisters:
1454829ec5SDiana Picus  - { id: 0, class: gprb }
1554829ec5SDiana Picus  - { id: 1, class: gprb }
1654829ec5SDiana Picusbody:             |
1754829ec5SDiana Picus  bb.0:
1854829ec5SDiana Picus    liveins: $r0
1954829ec5SDiana Picus
2054829ec5SDiana Picus    %0(s32) = COPY $r0
2154829ec5SDiana Picus    ; ARM: [[VREGX:%[0-9]+]]:gpr = COPY $r0
2254829ec5SDiana Picus    ; THUMB: [[VREGX:%[0-9]+]]:rgpr = COPY $r0
2354829ec5SDiana Picus
2454829ec5SDiana Picus    %1(s32) = G_CTLZ %0(s32)
25*7efabe5cSSjoerd Meijer    ; ARM: [[VREGR:%[0-9]+]]:gpr = CLZ [[VREGX]], 14 /* CC::al */, $noreg
26*7efabe5cSSjoerd Meijer    ; THUMB: [[VREGR:%[0-9]+]]:rgpr = t2CLZ [[VREGX]], 14 /* CC::al */, $noreg
2754829ec5SDiana Picus
2854829ec5SDiana Picus    $r0 = COPY %1(s32)
2954829ec5SDiana Picus    ; CHECK: $r0 = COPY [[VREGR]]
3054829ec5SDiana Picus
3154829ec5SDiana Picus    BX_RET 14, $noreg, implicit $r0
32*7efabe5cSSjoerd Meijer    ; CHECK: BX_RET 14 /* CC::al */, $noreg, implicit $r0
3354829ec5SDiana Picus...
34