From 490ff6310a6a7b197044455103916d1ba8642201 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Sun, 11 Oct 2009 22:36:59 +0000 Subject: convert to filecheck. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83801 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/InstCombine/shift.ll | 105 +++++++++++++++++++++++++++++++++-- 1 file changed, 100 insertions(+), 5 deletions(-) (limited to 'test/Transforms/InstCombine/shift.ll') diff --git a/test/Transforms/InstCombine/shift.ll b/test/Transforms/InstCombine/shift.ll index f09c025037..d3c3794055 100644 --- a/test/Transforms/InstCombine/shift.ll +++ b/test/Transforms/InstCombine/shift.ll @@ -1,25 +1,32 @@ ; This test makes sure that these instructions are properly eliminated. ; -; RUN: opt < %s -instcombine -S | not grep sh -; END. +; RUN: opt < %s -instcombine -S | FileCheck %s define i32 @test1(i32 %A) { +; CHECK: @test1 +; CHECK: ret i32 %A %B = shl i32 %A, 0 ; [#uses=1] ret i32 %B } define i32 @test2(i8 %A) { +; CHECK: @test2 +; CHECK: ret i32 0 %shift.upgrd.1 = zext i8 %A to i32 ; [#uses=1] %B = shl i32 0, %shift.upgrd.1 ; [#uses=1] ret i32 %B } define i32 @test3(i32 %A) { +; CHECK: @test3 +; CHECK: ret i32 %A %B = ashr i32 %A, 0 ; [#uses=1] ret i32 %B } define i32 @test4(i8 %A) { +; CHECK: @test4 +; CHECK: ret i32 0 %shift.upgrd.2 = zext i8 %A to i32 ; [#uses=1] %B = ashr i32 0, %shift.upgrd.2 ; [#uses=1] ret i32 %B @@ -27,22 +34,31 @@ define i32 @test4(i8 %A) { define i32 @test5(i32 %A) { +; CHECK: @test5 +; CHECK: ret i32 0 %B = lshr i32 %A, 32 ;; shift all bits out ret i32 %B } define i32 @test5a(i32 %A) { +; CHECK: @test5a +; CHECK: ret i32 0 %B = shl i32 %A, 32 ;; shift all bits out ret i32 %B } define i32 @test6(i32 %A) { +; CHECK: @test6 +; CHECK-NEXT: mul i32 %A, 6 +; CHECK-NEXT: ret i32 %B = shl i32 %A, 1 ;; convert to an mul instruction %C = mul i32 %B, 3 ret i32 %C } define i32 @test7(i8 %A) { +; CHECK: @test7 +; CHECK-NEXT: ret i32 -1 %shift.upgrd.3 = zext i8 %A to i32 %B = ashr i32 -1, %shift.upgrd.3 ;; Always equal to -1 ret i32 %B @@ -50,6 +66,8 @@ define i32 @test7(i8 %A) { ;; (A << 5) << 3 === A << 8 == 0 define i8 @test8(i8 %A) { +; CHECK: @test8 +; CHECK: ret i8 0 %B = shl i8 %A, 5 ; [#uses=1] %C = shl i8 %B, 3 ; [#uses=1] ret i8 %C @@ -57,6 +75,9 @@ define i8 @test8(i8 %A) { ;; (A << 7) >> 7 === A & 1 define i8 @test9(i8 %A) { +; CHECK: @test9 +; CHECK-NEXT: and i8 %A, 1 +; CHECK-NEXT: ret i8 %B = shl i8 %A, 7 ; [#uses=1] %C = lshr i8 %B, 7 ; [#uses=1] ret i8 %C @@ -64,6 +85,9 @@ define i8 @test9(i8 %A) { ;; (A >> 7) << 7 === A & 128 define i8 @test10(i8 %A) { +; CHECK: @test10 +; CHECK-NEXT: and i8 %A, -128 +; CHECK-NEXT: ret i8 %B = lshr i8 %A, 7 ; [#uses=1] %C = shl i8 %B, 7 ; [#uses=1] ret i8 %C @@ -71,6 +95,10 @@ define i8 @test10(i8 %A) { ;; (A >> 3) << 4 === (A & 0x1F) << 1 define i8 @test11(i8 %A) { +; CHECK: @test11 +; CHECK-NEXT: mul i8 %A, 6 +; CHECK-NEXT: and i8 +; CHECK-NEXT: ret i8 %a = mul i8 %A, 3 ; [#uses=1] %B = lshr i8 %a, 3 ; [#uses=1] %C = shl i8 %B, 4 ; [#uses=1] @@ -79,6 +107,9 @@ define i8 @test11(i8 %A) { ;; (A >> 8) << 8 === A & -256 define i32 @test12(i32 %A) { +; CHECK: @test12 +; CHECK-NEXT: and i32 %A, -256 +; CHECK-NEXT: ret i32 %B = ashr i32 %A, 8 ; [#uses=1] %C = shl i32 %B, 8 ; [#uses=1] ret i32 %C @@ -86,6 +117,10 @@ define i32 @test12(i32 %A) { ;; (A >> 3) << 4 === (A & -8) * 2 define i8 @test13(i8 %A) { +; CHECK: @test13 +; CHECK-NEXT: mul i8 %A, 6 +; CHECK-NEXT: and i8 +; CHECK-NEXT: ret i8 %a = mul i8 %A, 3 ; [#uses=1] %B = ashr i8 %a, 3 ; [#uses=1] %C = shl i8 %B, 4 ; [#uses=1] @@ -94,6 +129,10 @@ define i8 @test13(i8 %A) { ;; D = ((B | 1234) << 4) === ((B << 4)|(1234 << 4) define i32 @test14(i32 %A) { +; CHECK: @test14 +; CHECK-NEXT: or i32 %A, 19744 +; CHECK-NEXT: and i32 +; CHECK-NEXT: ret i32 %B = lshr i32 %A, 4 ; [#uses=1] %C = or i32 %B, 1234 ; [#uses=1] %D = shl i32 %C, 4 ; [#uses=1] @@ -102,6 +141,9 @@ define i32 @test14(i32 %A) { ;; D = ((B | 1234) << 4) === ((B << 4)|(1234 << 4) define i32 @test14a(i32 %A) { +; CHECK: @test14a +; CHECK-NEXT: and i32 %A, 77 +; CHECK-NEXT: ret i32 %B = shl i32 %A, 4 ; [#uses=1] %C = and i32 %B, 1234 ; [#uses=1] %D = lshr i32 %C, 4 ; [#uses=1] @@ -109,12 +151,18 @@ define i32 @test14a(i32 %A) { } define i32 @test15(i1 %C) { +; CHECK: @test15 +; CHECK-NEXT: select i1 %C, i32 12, i32 4 +; CHECK-NEXT: ret i32 %A = select i1 %C, i32 3, i32 1 ; [#uses=1] %V = shl i32 %A, 2 ; [#uses=1] ret i32 %V } define i32 @test15a(i1 %C) { +; CHECK: @test15a +; CHECK-NEXT: select i1 %C, i32 512, i32 128 +; CHECK-NEXT: ret i32 %A = select i1 %C, i8 3, i8 1 ; [#uses=1] %shift.upgrd.4 = zext i8 %A to i32 ; [#uses=1] %V = shl i32 64, %shift.upgrd.4 ; [#uses=1] @@ -122,13 +170,21 @@ define i32 @test15a(i1 %C) { } define i1 @test16(i32 %X) { - %tmp.3 = ashr i32 %X, 4 ; [#uses=1] - %tmp.6 = and i32 %tmp.3, 1 ; [#uses=1] - %tmp.7 = icmp ne i32 %tmp.6, 0 ; [#uses=1] +; CHECK: @test16 +; CHECK-NEXT: and i32 %X, 16 +; CHECK-NEXT: icmp ne i32 +; CHECK-NEXT: ret i1 + %tmp.3 = ashr i32 %X, 4 + %tmp.6 = and i32 %tmp.3, 1 + %tmp.7 = icmp ne i32 %tmp.6, 0 ret i1 %tmp.7 } define i1 @test17(i32 %A) { +; CHECK: @test17 +; CHECK-NEXT: and i32 %A, -8 +; CHECK-NEXT: icmp eq i32 +; CHECK-NEXT: ret i1 %B = lshr i32 %A, 3 ; [#uses=1] %C = icmp eq i32 %B, 1234 ; [#uses=1] ret i1 %C @@ -136,6 +192,9 @@ define i1 @test17(i32 %A) { define i1 @test18(i8 %A) { +; CHECK: @test18 +; CHECK: ret i1 false + %B = lshr i8 %A, 7 ; [#uses=1] ;; false %C = icmp eq i8 %B, 123 ; [#uses=1] @@ -143,6 +202,9 @@ define i1 @test18(i8 %A) { } define i1 @test19(i32 %A) { +; CHECK: @test19 +; CHECK-NEXT: icmp ult i32 %A, 4 +; CHECK-NEXT: ret i1 %B = ashr i32 %A, 2 ; [#uses=1] ;; (X & -4) == 0 %C = icmp eq i32 %B, 0 ; [#uses=1] @@ -151,6 +213,10 @@ define i1 @test19(i32 %A) { define i1 @test19a(i32 %A) { +; CHECK: @test19a +; CHECK-NEXT: and i32 %A, -4 +; CHECK-NEXT: icmp eq i32 +; CHECK-NEXT: ret i1 %B = ashr i32 %A, 2 ; [#uses=1] ;; (X & -4) == -4 %C = icmp eq i32 %B, -1 ; [#uses=1] @@ -158,6 +224,8 @@ define i1 @test19a(i32 %A) { } define i1 @test20(i8 %A) { +; CHECK: @test20 +; CHECK: ret i1 false %B = ashr i8 %A, 7 ; [#uses=1] ;; false %C = icmp eq i8 %B, 123 ; [#uses=1] @@ -165,18 +233,30 @@ define i1 @test20(i8 %A) { } define i1 @test21(i8 %A) { +; CHECK: @test21 +; CHECK-NEXT: and i8 %A, 15 +; CHECK-NEXT: icmp eq i8 +; CHECK-NEXT: ret i1 %B = shl i8 %A, 4 ; [#uses=1] %C = icmp eq i8 %B, -128 ; [#uses=1] ret i1 %C } define i1 @test22(i8 %A) { +; CHECK: @test22 +; CHECK-NEXT: and i8 %A, 15 +; CHECK-NEXT: icmp eq i8 +; CHECK-NEXT: ret i1 %B = shl i8 %A, 4 ; [#uses=1] %C = icmp eq i8 %B, 0 ; [#uses=1] ret i1 %C } define i8 @test23(i32 %A) { +; CHECK: @test23 +; CHECK-NEXT: trunc i32 %A to i8 +; CHECK-NEXT: ret i8 + ;; casts not needed %B = shl i32 %A, 24 ; [#uses=1] %C = ashr i32 %B, 24 ; [#uses=1] @@ -185,6 +265,9 @@ define i8 @test23(i32 %A) { } define i8 @test24(i8 %X) { +; CHECK: @test24 +; CHECK-NEXT: and i8 %X, 3 +; CHECK-NEXT: ret i8 %Y = and i8 %X, -5 ; [#uses=1] %Z = shl i8 %Y, 5 ; [#uses=1] %Q = ashr i8 %Z, 5 ; [#uses=1] @@ -192,6 +275,11 @@ define i8 @test24(i8 %X) { } define i32 @test25(i32 %tmp.2, i32 %AA) { +; CHECK: @test25 +; CHECK-NEXT: and i32 %tmp.2, -131072 +; CHECK-NEXT: add i32 %{{[^,]*}}, %AA +; CHECK-NEXT: and i32 %{{[^,]*}}, -131072 +; CHECK-NEXT: ret i32 %x = lshr i32 %AA, 17 ; [#uses=1] %tmp.3 = lshr i32 %tmp.2, 17 ; [#uses=1] %tmp.5 = add i32 %tmp.3, %x ; [#uses=1] @@ -201,6 +289,9 @@ define i32 @test25(i32 %tmp.2, i32 %AA) { ;; handle casts between shifts. define i32 @test26(i32 %A) { +; CHECK: @test26 +; CHECK-NEXT: and i32 %A, -2 +; CHECK-NEXT: ret i32 %B = lshr i32 %A, 1 ; [#uses=1] %C = bitcast i32 %B to i32 ; [#uses=1] %D = shl i32 %C, 1 ; [#uses=1] @@ -209,6 +300,10 @@ define i32 @test26(i32 %A) { define i1 @test27(i32 %x) nounwind { +; CHECK: @test27 +; CHECK-NEXT: and i32 %x, 8 +; CHECK-NEXT: icmp ne i32 +; CHECK-NEXT: ret i1 %y = lshr i32 %x, 3 %z = trunc i32 %y to i1 ret i1 %z -- cgit v1.2.3