1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py 2# RUN: llc -run-pass=peephole-opt -mtriple=i386-- %s -o - | FileCheck %s 3 4# Linkers may change `addq xx@GOTNTPOFF, %reg` to `leaq OFFSET(%reg), %reg`, 5# so we must not depend upon the EFLAGS output. Verify that the TEST 6# instruction won't be folded into the ADD. 7 8# NOTE: the IR will no longer actually produce the input MIR after 9# llvm.threadlocal.address intrinsic is annotated as having a nonnull 10# result. 11 12# NOTE2: the foo_nopic MIR was produced from IR with --relocation-model=static 13# while foo_pic's MIR was produced with --relocation-model=pic. 14 15--- | 16 target datalayout = "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-f64:32:64-f80:32-n8:16:32-S128" 17 target triple = "i386-unknown-linux-gnu" 18 19 @x = external thread_local(initialexec) global i32, align 4 20 21 define i32 @foo_nopic() { 22 %1 = tail call ptr @llvm.threadlocal.address.p0(ptr nonnull @x) 23 %cmp = icmp eq ptr %1, null 24 %zext = zext i1 %cmp to i32 25 ret i32 %zext 26 } 27 28 define i32 @foo_pic() { 29 %1 = tail call ptr @llvm.threadlocal.address.p0(ptr nonnull @x) 30 %cmp = icmp eq ptr %1, null 31 %zext = zext i1 %cmp to i32 32 ret i32 %zext 33 } 34 35 ; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn 36 declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #0 37 38 attributes #0 = { nocallback nofree nosync nounwind readnone speculatable willreturn } 39 40... 41--- 42name: foo_nopic 43alignment: 16 44tracksRegLiveness: true 45registers: 46 - { id: 0, class: gr32 } 47 - { id: 1, class: gr32 } 48 - { id: 2, class: gr8 } 49 - { id: 3, class: gr32 } 50frameInfo: 51 maxAlignment: 1 52machineFunctionInfo: {} 53body: | 54 bb.0 (%ir-block.0): 55 ; CHECK-LABEL: name: foo_nopic 56 ; CHECK: [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm $noreg, 1, $noreg, 0, $gs :: (load (s32) from `ptr addrspace(256) null`, addrspace 256) 57 ; CHECK-NEXT: [[ADD32rm:%[0-9]+]]:gr32 = ADD32rm [[MOV32rm]], $noreg, 1, $noreg, target-flags(x86-indntpoff) @x, $noreg, implicit-def dead $eflags :: (load (s32) from got) 58 ; CHECK-NEXT: TEST32rr [[ADD32rm]], [[ADD32rm]], implicit-def $eflags 59 ; CHECK-NEXT: [[SETCCr:%[0-9]+]]:gr8 = SETCCr 4, implicit $eflags 60 ; CHECK-NEXT: [[MOVZX32rr8_:%[0-9]+]]:gr32 = MOVZX32rr8 killed [[SETCCr]] 61 ; CHECK-NEXT: $eax = COPY [[MOVZX32rr8_]] 62 ; CHECK-NEXT: RET 0, $eax 63 %0:gr32 = MOV32rm $noreg, 1, $noreg, 0, $gs :: (load (s32) from `ptr addrspace(256) null`, addrspace 256) 64 %1:gr32 = ADD32rm %0, $noreg, 1, $noreg, target-flags(x86-indntpoff) @x, $noreg, implicit-def dead $eflags :: (load (s32) from got) 65 TEST32rr %1, %1, implicit-def $eflags 66 %2:gr8 = SETCCr 4, implicit $eflags 67 %3:gr32 = MOVZX32rr8 killed %2 68 $eax = COPY %3 69 RET 0, $eax 70 71... 72--- 73name: foo_pic 74alignment: 16 75tracksRegLiveness: true 76registers: 77 - { id: 0, class: gr32_nosp } 78 - { id: 1, class: gr32 } 79 - { id: 2, class: gr32 } 80 - { id: 3, class: gr8 } 81 - { id: 4, class: gr32 } 82 - { id: 5, class: gr32 } 83frameInfo: 84 maxAlignment: 1 85machineFunctionInfo: {} 86body: | 87 bb.0 (%ir-block.0): 88 ; CHECK-LABEL: name: foo_pic 89 ; CHECK: [[MOVPC32r:%[0-9]+]]:gr32 = MOVPC32r 0, implicit $esp, implicit $ssp 90 ; CHECK-NEXT: [[ADD32ri:%[0-9]+]]:gr32_nosp = ADD32ri [[MOVPC32r]], target-flags(x86-got-absolute-address) &_GLOBAL_OFFSET_TABLE_, implicit-def $eflags 91 ; CHECK-NEXT: [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm $noreg, 1, $noreg, 0, $gs :: (load (s32) from `ptr addrspace(256) null`, addrspace 256) 92 ; CHECK-NEXT: [[ADD32rm:%[0-9]+]]:gr32 = ADD32rm [[MOV32rm]], [[ADD32ri]], 1, $noreg, target-flags(x86-gotntpoff) @x, $noreg, implicit-def dead $eflags :: (load (s32) from got) 93 ; CHECK-NEXT: TEST32rr [[ADD32rm]], [[ADD32rm]], implicit-def $eflags 94 ; CHECK-NEXT: [[SETCCr:%[0-9]+]]:gr8 = SETCCr 4, implicit $eflags 95 ; CHECK-NEXT: [[MOVZX32rr8_:%[0-9]+]]:gr32 = MOVZX32rr8 killed [[SETCCr]] 96 ; CHECK-NEXT: $eax = COPY [[MOVZX32rr8_]] 97 ; CHECK-NEXT: RET 0, $eax 98 %5:gr32 = MOVPC32r 0, implicit $esp, implicit $ssp 99 %0:gr32_nosp = ADD32ri %5, target-flags(x86-got-absolute-address) &_GLOBAL_OFFSET_TABLE_, implicit-def $eflags 100 %1:gr32 = MOV32rm $noreg, 1, $noreg, 0, $gs :: (load (s32) from `ptr addrspace(256) null`, addrspace 256) 101 %2:gr32 = ADD32rm %1, %0, 1, $noreg, target-flags(x86-gotntpoff) @x, $noreg, implicit-def dead $eflags :: (load (s32) from got) 102 TEST32rr %2, %2, implicit-def $eflags 103 %3:gr8 = SETCCr 4, implicit $eflags 104 %4:gr32 = MOVZX32rr8 killed %3 105 $eax = COPY %4 106 RET 0, $eax 107... 108