Imported Upstream version 5.18.0.225

Former-commit-id: 10196d987d5fc5564b9d3b33b1fdf13190f4d0b5

external/llvm/test/CodeGen/X86/fold-push.ll

@@ -0,0 +1,40 @@
+; RUN: llc < %s -mtriple=i686-windows | FileCheck %s -check-prefix=CHECK -check-prefix=NORMAL
+; RUN: llc < %s -mtriple=i686-windows -mattr=slow-two-mem-ops | FileCheck %s -check-prefix=CHECK -check-prefix=SLM
+
+declare void @foo(i32 %r)
+
+define void @test(i32 %a, i32 %b) optsize nounwind {
+; CHECK-LABEL: test:
+; CHECK: movl [[EAX:%e..]], (%esp)
+; CHECK-NEXT: pushl [[EAX]]
+; CHECK-NEXT: calll
+; CHECK-NEXT: addl $4, %esp
+; CHECK: nop
+; NORMAL: pushl (%esp)
+; SLM: movl (%esp), [[RELOAD:%e..]]
+; SLM-NEXT: pushl [[RELOAD]]
+; CHECK: calll
+; CHECK-NEXT: addl $8, %esp
+  %c = add i32 %a, %b
+  call void @foo(i32 %c)
+  call void asm sideeffect "nop", "~{ax},~{bx},~{cx},~{dx},~{bp},~{si},~{di}"()
+  call void @foo(i32 %c)
+  ret void
+}
+
+define void @test_min(i32 %a, i32 %b) minsize nounwind {
+; CHECK-LABEL: test_min:
+; CHECK: movl [[EAX:%e..]], (%esp)
+; CHECK-NEXT: pushl [[EAX]]
+; CHECK-NEXT: calll
+; CHECK-NEXT: popl
+; CHECK: nop
+; CHECK: pushl (%esp)
+; CHECK: calll
+; CHECK-NEXT: popl
+  %c = add i32 %a, %b
+  call void @foo(i32 %c)
+  call void asm sideeffect "nop", "~{ax},~{bx},~{cx},~{dx},~{bp},~{si},~{di}"()
+  call void @foo(i32 %c)
+  ret void
+}