X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=test%2FCodeGen%2FX86%2Fdivide-by-constant.ll;h=9543d6c4d74988bf71390f3c315e2b8df9d33fe4;hb=ec63ff81dd85fcb1731ccfb07980a259cc974ee8;hp=ab3bd9414957210c92c60948c98f0f477c5a3e20;hpb=d0cf2585a00bc7dd9a682b65dc53245db37ec366;p=oota-llvm.git

diff --git a/test/CodeGen/X86/divide-by-constant.ll b/test/CodeGen/X86/divide-by-constant.ll
index ab3bd941495..9543d6c4d74 100644
--- a/test/CodeGen/X86/divide-by-constant.ll
+++ b/test/CodeGen/X86/divide-by-constant.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s -mtriple=i686-pc-linux-gnu -asm-verbose=0 | FileCheck %s
+; RUN: llc < %s -mcpu=generic -mtriple=i686-pc-linux-gnu -asm-verbose=0 | FileCheck %s
 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32"
 target triple = "i686-pc-linux-gnu"
 
@@ -6,8 +6,8 @@ define zeroext i16 @test1(i16 zeroext %x) nounwind {
 entry:
 	%div = udiv i16 %x, 33
 	ret i16 %div
-; CHECK: test1:
-; CHECK: imull	$63551, %eax, %eax
+; CHECK-LABEL: test1:
+; CHECK: imull	$63551, %eax
 ; CHECK-NEXT: shrl	$21, %eax
 ; CHECK-NEXT: ret
 }
@@ -17,8 +17,8 @@ entry:
   %div = udiv i16 %c, 3
   ret i16 %div
 
-; CHECK: test2:
-; CHECK: imull	$43691, %eax, %eax
+; CHECK-LABEL: test2:
+; CHECK: imull	$43691, %eax
 ; CHECK-NEXT: shrl	$17, %eax
 ; CHECK-NEXT: ret
 }
@@ -28,10 +28,11 @@ entry:
   %div = udiv i8 %c, 3
   ret i8 %div
 
-; CHECK: test3:
-; CHECK: imull	$171, %eax, %eax
-; CHECK-NEXT: shrb	%ah
-; CHECK-NEXT: movzbl	%ah, %eax
+; CHECK-LABEL: test3:
+; CHECK: movzbl  8(%esp), %eax
+; CHECK-NEXT: imull	$171, %eax
+; CHECK-NEXT: andl $65024, %eax
+; CHECK-NEXT: shrl	$9, %eax
 ; CHECK-NEXT: ret
 }
 
@@ -39,15 +40,89 @@ define signext i16 @test4(i16 signext %x) nounwind {
 entry:
 	%div = sdiv i16 %x, 33		; <i32> [#uses=1]
 	ret i16 %div
-; CHECK: test4:
-; CHECK: imull	$-1985, %ecx, %ecx 
+; CHECK-LABEL: test4:
+; CHECK: imull	$1986, %eax
 }
 
 define i32 @test5(i32 %A) nounwind {
         %tmp1 = udiv i32 %A, 1577682821         ; <i32> [#uses=1]
         ret i32 %tmp1
-; CHECK: test5:
+; CHECK-LABEL: test5:
 ; CHECK: movl	$365384439, %eax
 ; CHECK: mull	4(%esp)
 }
 
+define signext i16 @test6(i16 signext %x) nounwind {
+entry:
+  %div = sdiv i16 %x, 10
+  ret i16 %div
+; CHECK-LABEL: test6:
+; CHECK: imull $26215, %eax
+; CHECK: movl %eax, %ecx
+; CHECK: shrl $31, %ecx
+; CHECK: sarl $18, %eax
+}
+
+define i32 @test7(i32 %x) nounwind {
+  %div = udiv i32 %x, 28
+  ret i32 %div
+; CHECK-LABEL: test7:
+; CHECK: shrl $2
+; CHECK: movl $613566757
+; CHECK: mull
+; CHECK-NOT: shrl
+; CHECK: ret
+}
+
+; PR13326
+define i8 @test8(i8 %x) nounwind {
+  %div = udiv i8 %x, 78
+  ret i8 %div
+; CHECK-LABEL: test8:
+; CHECK: shrb %
+; CHECK: imull $211
+; CHECK: shrl $13
+; CHECK: ret
+}
+
+define i8 @test9(i8 %x) nounwind {
+  %div = udiv i8 %x, 116
+  ret i8 %div
+; CHECK-LABEL: test9:
+; CHECK: shrb $2
+; CHECK: imull $71
+; CHECK: shrl $11
+; CHECK: ret
+}
+
+define i32 @testsize1(i32 %x) minsize nounwind {
+entry:
+	%div = sdiv i32 %x, 32
+	ret i32 %div
+; CHECK-LABEL: testsize1:
+; CHECK: divl
+}
+
+define i32 @testsize2(i32 %x) minsize nounwind {
+entry:
+	%div = sdiv i32 %x, 33
+	ret i32 %div
+; CHECK-LABEL: testsize2:
+; CHECK: divl
+}
+
+define i32 @testsize3(i32 %x) minsize nounwind {
+entry:
+	%div = udiv i32 %x, 32
+	ret i32 %div
+; CHECK-LABEL: testsize3:
+; CHECK: shrl
+}
+
+define i32 @testsize4(i32 %x) minsize nounwind {
+entry:
+	%div = udiv i32 %x, 33
+	ret i32 %div
+; CHECK-LABEL: testsize4:
+; CHECK: divl
+}