Imported Upstream version 5.18.0.205

Former-commit-id: 7f59f7e792705db773f1caecdaa823092f4e2927

external/llvm/test/CodeGen/X86/fast-isel-i1.ll

@@ -0,0 +1,42 @@
+; RUN: llc < %s -mtriple=i686-apple-darwin10 -fast-isel -fast-isel-abort=1 | FileCheck %s
+; RUN: llc < %s -mtriple=x86_64-apple-darwin10 -fast-isel -fast-isel-abort=1 | FileCheck %s
+
+declare i32 @test1a(i32)
+
+define i32 @test1(i32 %x) nounwind {
+; CHECK-LABEL: test1:
+; CHECK: andb $1, %
+	%y = add i32 %x, -3
+	%t = call i32 @test1a(i32 %y)
+	%s = mul i32 %t, 77
+	%z = trunc i32 %s to i1
+	br label %next
+
+next:		; preds = %0
+	%u = zext i1 %z to i32
+	%v = add i32 %u, 1999
+	br label %exit
+
+exit:		; preds = %next
+	ret i32 %v
+}
+
+define void @test2(i8* %a) nounwind {
+entry:
+; clang uses i8 constants for booleans, so we test with an i8 1.
+; CHECK-LABEL: test2:
+; CHECK: movb {{.*}} %al
+; CHECK-NEXT: xorb $1, %al
+; CHECK-NEXT: testb $1
+  %tmp = load i8, i8* %a, align 1
+  %xor = xor i8 %tmp, 1
+  %tobool = trunc i8 %xor to i1
+  br i1 %tobool, label %if.then, label %if.end
+
+if.then:
+  call void @test2(i8* null)
+  br label %if.end
+
+if.end:
+  ret void
+}