llvm-project/llvm/test/CodeGen/X86/tail-dup-addr.ll
Nikita Popov 2f448bf509 [X86] Migrate tests to use opaque pointers (NFC)
Test updates were performed using:
https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34

These are only the test updates where the test passed without
further modification (which is almost all of them, as the backend
is largely pointer-type agnostic).
2022-06-22 14:38:25 +02:00

29 lines
981 B
LLVM

; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s
; Test that we don't drop a block that has its address taken.
; CHECK: Ltmp0: ## Block address taken
; CHECK: Ltmp1: ## Block address taken
@a = common global i32 0, align 4
@p = common global ptr null, align 8
define void @foo() noreturn nounwind uwtable ssp {
entry:
%tmp = load i32, ptr @a, align 4
%foo = icmp eq i32 0, %tmp
br i1 %foo, label %sw.bb, label %sw.default
sw.bb: ; preds = %entry
store ptr blockaddress(@foo, %sw.bb1), ptr @p, align 8
br label %sw.bb1
sw.bb1: ; preds = %sw.default, %sw.bb, %entry
store ptr blockaddress(@foo, %sw.default), ptr @p, align 8
br label %sw.default
sw.default: ; preds = %sw.bb1, %entry
store ptr blockaddress(@foo, %sw.bb1), ptr @p, align 8
br label %sw.bb1
}