Imported Upstream version 5.18.0.182

Former-commit-id: f9d55cf82631bfd710c387739687e5845296aea1

external/llvm/test/CodeGen/X86/2009-03-23-LinearScanBug.ll

@@ -1,23 +0,0 @@
-; RUN: llc < %s -mtriple=i386-apple-darwin -O0
-
-define fastcc void @optimize_bit_field() nounwind {
-bb4:
-        %a = load i32, i32* null             ; <i32> [#uses=1]
-        %s = load i32, i32* getelementptr (i32, i32* null, i32 1)         ; <i32> [#uses=1]
-        %z = load i32, i32* getelementptr (i32, i32* null, i32 2)         ; <i32> [#uses=1]
-        %r = bitcast i32 0 to i32          ; <i32> [#uses=1]
-        %q = trunc i32 %z to i8            ; <i8> [#uses=1]
-        %b = icmp eq i8 0, %q              ; <i1> [#uses=1]
-        br i1 %b, label %bb73, label %bb72
-
-bb72:      ; preds = %bb4
-        %f = tail call fastcc i32 @gen_lowpart(i32 %r, i32 %a) nounwind              ; <i32> [#uses=1]
-        br label %bb73
-
-bb73:         ; preds = %bb72, %bb4
-        %y = phi i32 [ %f, %bb72 ], [ %s, %bb4 ]          ; <i32> [#uses=1]
-        store i32 %y, i32* getelementptr (i32, i32* null, i32 3)
-        unreachable
-}
-
-declare fastcc i32 @gen_lowpart(i32, i32) nounwind