1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py 2# RUN: llc -mtriple=amdgcn -o - -run-pass=block-placement -mcpu=gfx1010 -mattr=-inst-fwd-prefetch-bug -verify-machineinstrs %s | FileCheck -check-prefixes=GFX10 %s 3# RUN: llc -mtriple=amdgcn -o - -run-pass=block-placement -mcpu=gfx1100 -mattr=-inst-fwd-prefetch-bug -verify-machineinstrs %s | FileCheck -check-prefixes=GFX11 %s 4 5# Used to fail with 6# Assertion `Out && "Header of loop has no predecessors from outside loop?" 7 8--- 9name: loop_header_nopred 10body: | 11 ; GFX10-LABEL: name: loop_header_nopred 12 ; GFX10: bb.0: 13 ; GFX10-NEXT: successors: %bb.2(0x80000000) 14 ; GFX10-NEXT: {{ $}} 15 ; GFX10-NEXT: S_BRANCH %bb.2 16 ; GFX10-NEXT: {{ $}} 17 ; GFX10-NEXT: bb.1 (align 64): 18 ; GFX10-NEXT: successors: %bb.7(0x04000000), %bb.2(0x7c000000) 19 ; GFX10-NEXT: {{ $}} 20 ; GFX10-NEXT: S_CBRANCH_VCCNZ %bb.7, implicit $vcc_lo 21 ; GFX10-NEXT: {{ $}} 22 ; GFX10-NEXT: bb.2: 23 ; GFX10-NEXT: successors: %bb.5(0x40000000), %bb.1(0x40000000) 24 ; GFX10-NEXT: {{ $}} 25 ; GFX10-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec 26 ; GFX10-NEXT: {{ $}} 27 ; GFX10-NEXT: bb.5: 28 ; GFX10-NEXT: successors: %bb.1(0x04000000), %bb.5(0x7c000000) 29 ; GFX10-NEXT: {{ $}} 30 ; GFX10-NEXT: S_NOP 0 31 ; GFX10-NEXT: S_NOP 0 32 ; GFX10-NEXT: S_NOP 0 33 ; GFX10-NEXT: S_NOP 0 34 ; GFX10-NEXT: S_NOP 0 35 ; GFX10-NEXT: S_NOP 0 36 ; GFX10-NEXT: S_NOP 0 37 ; GFX10-NEXT: S_NOP 0 38 ; GFX10-NEXT: S_NOP 0 39 ; GFX10-NEXT: S_NOP 0 40 ; GFX10-NEXT: S_NOP 0 41 ; GFX10-NEXT: S_CBRANCH_EXECZ %bb.5, implicit $exec 42 ; GFX10-NEXT: S_BRANCH %bb.1 43 ; GFX10-NEXT: {{ $}} 44 ; GFX10-NEXT: bb.7: 45 ; GFX10-NEXT: S_ENDPGM 0 46 ; 47 ; GFX11-LABEL: name: loop_header_nopred 48 ; GFX11: bb.0: 49 ; GFX11-NEXT: successors: %bb.2(0x80000000) 50 ; GFX11-NEXT: {{ $}} 51 ; GFX11-NEXT: S_BRANCH %bb.2 52 ; GFX11-NEXT: {{ $}} 53 ; GFX11-NEXT: bb.1: 54 ; GFX11-NEXT: successors: %bb.7(0x04000000), %bb.2(0x7c000000) 55 ; GFX11-NEXT: {{ $}} 56 ; GFX11-NEXT: S_CBRANCH_VCCNZ %bb.7, implicit $vcc_lo 57 ; GFX11-NEXT: {{ $}} 58 ; GFX11-NEXT: bb.2: 59 ; GFX11-NEXT: successors: %bb.5(0x40000000), %bb.1(0x40000000) 60 ; GFX11-NEXT: {{ $}} 61 ; GFX11-NEXT: S_CBRANCH_EXECZ %bb.1, implicit $exec 62 ; GFX11-NEXT: {{ $}} 63 ; GFX11-NEXT: bb.5: 64 ; GFX11-NEXT: successors: %bb.1(0x04000000), %bb.5(0x7c000000) 65 ; GFX11-NEXT: {{ $}} 66 ; GFX11-NEXT: S_NOP 0 67 ; GFX11-NEXT: S_NOP 0 68 ; GFX11-NEXT: S_NOP 0 69 ; GFX11-NEXT: S_NOP 0 70 ; GFX11-NEXT: S_NOP 0 71 ; GFX11-NEXT: S_NOP 0 72 ; GFX11-NEXT: S_NOP 0 73 ; GFX11-NEXT: S_NOP 0 74 ; GFX11-NEXT: S_NOP 0 75 ; GFX11-NEXT: S_NOP 0 76 ; GFX11-NEXT: S_NOP 0 77 ; GFX11-NEXT: S_CBRANCH_EXECZ %bb.5, implicit $exec 78 ; GFX11-NEXT: S_BRANCH %bb.1 79 ; GFX11-NEXT: {{ $}} 80 ; GFX11-NEXT: bb.7: 81 ; GFX11-NEXT: S_ENDPGM 0 82 bb.0: 83 successors: %bb.1(0x80000000) 84 85 bb.1: 86 successors: %bb.2(0x40000000), %bb.3(0x40000000) 87 88 S_CBRANCH_VCCZ %bb.3, implicit $vcc 89 S_BRANCH %bb.2 90 91 bb.2: 92 successors: %bb.3(0x80000000) 93 94 bb.3: 95 successors: %bb.4(0x40000000), %bb.6(0x40000000) 96 97 S_CBRANCH_EXECZ %bb.6, implicit $exec 98 S_BRANCH %bb.4 99 100 bb.4: 101 successors: %bb.5(0x04000000), %bb.4(0x7c000000) 102 103 S_NOP 0 104 S_NOP 0 105 S_NOP 0 106 S_NOP 0 107 S_NOP 0 108 S_NOP 0 109 S_NOP 0 110 S_NOP 0 111 S_NOP 0 112 S_NOP 0 113 S_NOP 0 114 S_CBRANCH_EXECZ %bb.4, implicit $exec 115 116 bb.5: 117 successors: %bb.6(0x80000000) 118 119 bb.6: 120 successors: %bb.7(0x04000000), %bb.1(0x7c000000) 121 122 S_CBRANCH_VCCZ %bb.1, implicit $vcc 123 124 bb.7: 125 S_ENDPGM 0 126... 127