| # NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py |
| # RUN: llc -run-pass=peephole-opt -mtriple=x86_64-- %s -o - | FileCheck %s |
| |
| # Linkers may change `addq xx@GOTTPOFF, %reg` to `leaq OFFSET(%reg), %reg`, |
| # so we must not depend upon the EFLAGS output. Verify that the TEST |
| # instruction won't be folded into the ADD. |
| |
| # NOTE: the IR will no longer actually produce the input MIR after |
| # llvm.threadlocal.address intrinsic is annotated as having a nonnull |
| # result. |
| |
| --- | |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| @x = external thread_local(initialexec) global i32, align 4 |
| |
| define i32 @foo() { |
| %1 = tail call ptr @llvm.threadlocal.address.p0(ptr nonnull @x) |
| %cmp = icmp eq ptr %1, null |
| %zext = zext i1 %cmp to i32 |
| ret i32 %zext |
| } |
| |
| ; Function Attrs: nocallback nofree nosync nounwind readnone speculatable willreturn |
| declare nonnull ptr @llvm.threadlocal.address.p0(ptr nonnull) #0 |
| |
| attributes #0 = { nocallback nofree nosync nounwind readnone speculatable willreturn } |
| |
| ... |
| --- |
| name: foo |
| alignment: 16 |
| tracksRegLiveness: true |
| registers: |
| - { id: 0, class: gr64 } |
| - { id: 1, class: gr64 } |
| - { id: 2, class: gr8 } |
| - { id: 3, class: gr32 } |
| frameInfo: |
| maxAlignment: 1 |
| machineFunctionInfo: {} |
| body: | |
| bb.0 (%ir-block.0): |
| ; CHECK-LABEL: name: foo |
| ; CHECK: [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm $noreg, 1, $noreg, 0, $fs :: (load (s64) from `ptr addrspace(257) null`, addrspace 257) |
| ; CHECK-NEXT: [[ADD64rm:%[0-9]+]]:gr64 = ADD64rm [[MOV64rm]], $rip, 1, $noreg, target-flags(x86-gottpoff) @x, $noreg, implicit-def dead $eflags :: (load (s64) from got) |
| ; CHECK-NEXT: TEST64rr [[ADD64rm]], [[ADD64rm]], implicit-def $eflags |
| ; CHECK-NEXT: [[SETCCr:%[0-9]+]]:gr8 = SETCCr 4, implicit $eflags |
| ; CHECK-NEXT: [[MOVZX32rr8_:%[0-9]+]]:gr32 = MOVZX32rr8 killed [[SETCCr]] |
| ; CHECK-NEXT: $eax = COPY [[MOVZX32rr8_]] |
| ; CHECK-NEXT: RET 0, $eax |
| %0:gr64 = MOV64rm $noreg, 1, $noreg, 0, $fs :: (load (s64) from `ptr addrspace(257) null`, addrspace 257) |
| %1:gr64 = ADD64rm %0, $rip, 1, $noreg, target-flags(x86-gottpoff) @x, $noreg, implicit-def dead $eflags :: (load (s64) from got) |
| TEST64rr %1, %1, implicit-def $eflags |
| %2:gr8 = SETCCr 4, implicit $eflags |
| %3:gr32 = MOVZX32rr8 killed %2 |
| $eax = COPY %3 |
| RET 0, $eax |
| |
| ... |