[llvm-commits] [llvm] r130613 - /llvm/trunk/test/Transforms/InstCombine/div.ll

[Benjamin Kramer]

Author: d0k
Date: Sat Apr 30 13:15:53 2011
New Revision: 130613

URL: http://llvm.org/viewvc/llvm-project?rev=130613&view=rev
Log:
FileCheckize.

Modified:
    llvm/trunk/test/Transforms/InstCombine/div.ll

Modified: llvm/trunk/test/Transforms/InstCombine/div.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/div.ll?rev=130613&r1=130612&r2=130613&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/div.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/div.ll Sat Apr 30 13:15:53 2011
@@ -1,34 +1,44 @@
 ; This test makes sure that div instructions are properly eliminated.
 
-; RUN: opt < %s -instcombine -S | not grep div
+; RUN: opt < %s -instcombine -S | FileCheck %s
 
 define i32 @test1(i32 %A) {
         %B = sdiv i32 %A, 1             ; <i32> [#uses=1]
         ret i32 %B
+; CHECK: @test1
+; CHECK-NEXT: ret i32 %A
 }
 
 define i32 @test2(i32 %A) {
         ; => Shift
         %B = udiv i32 %A, 8             ; <i32> [#uses=1]
         ret i32 %B
+; CHECK: @test2
+; CHECK-NEXT: lshr i32 %A, 3
 }
 
 define i32 @test3(i32 %A) {
         ; => 0, don't need to keep traps
         %B = sdiv i32 0, %A             ; <i32> [#uses=1]
         ret i32 %B
+; CHECK: @test3
+; CHECK-NEXT: ret i32 0
 }
 
 define i32 @test4(i32 %A) {
         ; 0-A
         %B = sdiv i32 %A, -1            ; <i32> [#uses=1]
         ret i32 %B
+; CHECK: @test4
+; CHECK-NEXT: sub i32 0, %A
 }
 
 define i32 @test5(i32 %A) {
         %B = udiv i32 %A, -16           ; <i32> [#uses=1]
         %C = udiv i32 %B, -4            ; <i32> [#uses=1]
         ret i32 %C
+; CHECK: @test5
+; CHECK-NEXT: ret i32 0
 }
 
 define i1 @test6(i32 %A) {
@@ -36,6 +46,8 @@
         ; A < 123
         %C = icmp eq i32 %B, 0          ; <i1> [#uses=1]
         ret i1 %C
+; CHECK: @test6
+; CHECK-NEXT: icmp ult i32 %A, 123
 }
 
 define i1 @test7(i32 %A) {
@@ -43,6 +55,9 @@
         ; A >= 20 && A < 30
         %C = icmp eq i32 %B, 2          ; <i1> [#uses=1]
         ret i1 %C
+; CHECK: @test7
+; CHECK-NEXT: add i32 %A, -20
+; CHECK-NEXT: icmp ult i32
 }
 
 define i1 @test8(i8 %A) {
@@ -50,6 +65,8 @@
         ; A >= 246
         %C = icmp eq i8 %B, 2           ; <i1> [#uses=1]
         ret i1 %C
+; CHECK: @test8
+; CHECK-NEXT: icmp ugt i8 %A, -11
 }
 
 define i1 @test9(i8 %A) {
@@ -57,28 +74,40 @@
         ; A < 246
         %C = icmp ne i8 %B, 2           ; <i1> [#uses=1]
         ret i1 %C
+; CHECK: @test9
+; CHECK-NEXT: icmp ult i8 %A, -10
 }
 
 define i32 @test10(i32 %X, i1 %C) {
         %V = select i1 %C, i32 64, i32 8                ; <i32> [#uses=1]
         %R = udiv i32 %X, %V            ; <i32> [#uses=1]
         ret i32 %R
+; CHECK: @test10
+; CHECK-NEXT: select i1 %C, i32 6, i32 3
+; CHECK-NEXT: lshr i32 %X
 }
 
 define i32 @test11(i32 %X, i1 %C) {
         %A = select i1 %C, i32 1024, i32 32             ; <i32> [#uses=1]
         %B = udiv i32 %X, %A            ; <i32> [#uses=1]
         ret i32 %B
+; CHECK: @test11
+; CHECK-NEXT: select i1 %C, i32 10, i32 5
+; CHECK-NEXT: lshr i32 %X
 }
 
 ; PR2328
 define i32 @test12(i32 %x) nounwind  {
 	%tmp3 = udiv i32 %x, %x		; 1
 	ret i32 %tmp3
+; CHECK: @test12
+; CHECK-NEXT: ret i32 1
 }
 
 define i32 @test13(i32 %x) nounwind  {
 	%tmp3 = sdiv i32 %x, %x		; 1
 	ret i32 %tmp3
+; CHECK: @test13
+; CHECK-NEXT: ret i32 1
 }