llvm-project/llvm/test/CodeGen/X86/unreachable-loop-sinking.ll
Lee Wei 2b63077cfa
[llvm] Remove br i1 undef from CodeGen/X86 tests (#121733)
This PR removes tests with `br i1 undef` under `llvm/tests/CodeGen/X86`.
There will be more PRs in the future for this directory.

Replacing `undef` with a new function argument doesn't work in some of
the tests, instead, I've replaced them with `poison`.
2025-01-06 08:43:39 +00:00

31 lines
1.1 KiB
LLVM

; RUN: llc < %s
; PR6777
; MachineSink shouldn't try to sink code in unreachable blocks, as it's
; not worthwhile, and there are corner cases which it doesn't handle.
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"
target triple = "x86_64-unknown-linux-gnu"
define double @fn1(ptr %arg, i64 %arg1, i1 %arg2) {
Entry:
br i1 %arg2, label %Body, label %Exit
Exit: ; preds = %Brancher7, %Entry
ret double undef
Body: ; preds = %Entry
br i1 false, label %Brancher7, label %Body3
Body3: ; preds = %Body6, %Body3, %Body
br label %Body3
Body6: ; preds = %Brancher7
%tmp = fcmp oeq double 0xC04FBB2E40000000, undef ; <i1> [#uses=1]
br i1 %tmp, label %Body3, label %Brancher7
Brancher7: ; preds = %Body6, %Body
%tmp2 = icmp ult i32 undef, 10 ; <i1> [#uses=1]
br i1 %tmp2, label %Body6, label %Exit
}