Files
clang-p2996/llvm/test/CodeGen/X86/fast-isel-expect.ll
Nikita Popov deab451e7a [IR] Remove support for icmp and fcmp constant expressions (#93038)
Remove support for the icmp and fcmp constant expressions.

This is part of:
https://discourse.llvm.org/t/rfc-remove-most-constant-expressions/63179

As usual, many of the updated tests will no longer test what they were
originally intended to -- this is hard to preserve when constant
expressions get removed, and in many cases just impossible as the
existence of a specific kind of constant expression was the cause of the
issue in the first place.
2024-06-04 08:31:03 +02:00

24 lines
587 B
LLVM

; RUN: llc < %s -O0 | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "i686-unknown-linux-gnu"
@glbl = extern_weak constant i8
declare i64 @llvm.expect.i64(i64, i64)
define void @test() {
; CHECK: movl $glbl
%cmp2 = icmp eq ptr @glbl, null
%ext = zext i1 %cmp2 to i64
%tmp = call i64 @llvm.expect.i64(i64 %ext, i64 0)
%tmp2 = icmp ne i64 %tmp, 0
br i1 %tmp2, label %bb1, label %bb2
bb1:
unreachable
bb2:
unreachable
}