| ; RUN: llc < %s -mtriple=i386-apple-macosx -mcpu=penryn | FileCheck %s |
| ; PR3253 |
| |
| ; The register+memory form of the BT instruction should be usable on |
| ; pentium4, however it is currently disabled due to the register+memory |
| ; form having different semantics than the register+register form. |
| |
| ; Test these patterns: |
| ; (X & (1 << N)) != 0 --> BT(X, N). |
| ; ((X >>u N) & 1) != 0 --> BT(X, N). |
| ; as well as several variations: |
| ; - The second form can use an arithmetic shift. |
| ; - Either form can use == instead of !=. |
| ; - Either form can compare with an operand of the & |
| ; instead of with 0. |
| ; - The comparison can be commuted (only cases where neither |
| ; operand is constant are included). |
| ; - The and can be commuted. |
| |
| define void @test2(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: test2 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = lshr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1] |
| %tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @test2b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: test2b |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = lshr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 1, %tmp29 |
| %tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @atest2(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: atest2 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = ashr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1] |
| %tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @atest2b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: atest2b |
| ; CHECK: btl %eax, %ecx |
| %tmp29 = ashr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 1, %tmp29 |
| %tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @test3(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: test3 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1] |
| %tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @test3b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: test3b |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %x, %tmp29 |
| %tmp4 = icmp eq i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @testne2(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: testne2 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = lshr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1] |
| %tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @testne2b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: testne2b |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = lshr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 1, %tmp29 |
| %tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @atestne2(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: atestne2 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = ashr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1] |
| %tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @atestne2b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: atestne2b |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = ashr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 1, %tmp29 |
| %tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @testne3(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: testne3 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1] |
| %tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @testne3b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: testne3b |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %x, %tmp29 |
| %tmp4 = icmp ne i32 %tmp3, 0 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @query2(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: query2 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = lshr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1] |
| %tmp4 = icmp eq i32 %tmp3, 1 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @query2b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: query2b |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = lshr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 1, %tmp29 |
| %tmp4 = icmp eq i32 %tmp3, 1 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @aquery2(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: aquery2 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = ashr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1] |
| %tmp4 = icmp eq i32 %tmp3, 1 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @aquery2b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: aquery2b |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = ashr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 1, %tmp29 |
| %tmp4 = icmp eq i32 %tmp3, 1 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @query3(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: query3 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1] |
| %tmp4 = icmp eq i32 %tmp3, %tmp29 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @query3b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: query3b |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %x, %tmp29 |
| %tmp4 = icmp eq i32 %tmp3, %tmp29 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @query3x(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: query3x |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1] |
| %tmp4 = icmp eq i32 %tmp29, %tmp3 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @query3bx(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: query3bx |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jae |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %x, %tmp29 |
| %tmp4 = icmp eq i32 %tmp29, %tmp3 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @queryne2(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: queryne2 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = lshr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1] |
| %tmp4 = icmp ne i32 %tmp3, 1 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @queryne2b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: queryne2b |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = lshr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 1, %tmp29 |
| %tmp4 = icmp ne i32 %tmp3, 1 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @aqueryne2(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: aqueryne2 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = ashr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, 1 ; <i32> [#uses=1] |
| %tmp4 = icmp ne i32 %tmp3, 1 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @aqueryne2b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: aqueryne2b |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = ashr i32 %x, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 1, %tmp29 |
| %tmp4 = icmp ne i32 %tmp3, 1 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @queryne3(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: queryne3 |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1] |
| %tmp4 = icmp ne i32 %tmp3, %tmp29 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @queryne3b(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: queryne3b |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %x, %tmp29 |
| %tmp4 = icmp ne i32 %tmp3, %tmp29 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @queryne3x(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: queryne3x |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %tmp29, %x ; <i32> [#uses=1] |
| %tmp4 = icmp ne i32 %tmp29, %tmp3 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| define void @queryne3bx(i32 %x, i32 %n) nounwind { |
| entry: |
| ; CHECK: queryne3bx |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: jb |
| %tmp29 = shl i32 1, %n ; <i32> [#uses=1] |
| %tmp3 = and i32 %x, %tmp29 |
| %tmp4 = icmp ne i32 %tmp29, %tmp3 ; <i1> [#uses=1] |
| br i1 %tmp4, label %bb, label %UnifiedReturnBlock |
| |
| bb: ; preds = %entry |
| call void @foo() |
| ret void |
| |
| UnifiedReturnBlock: ; preds = %entry |
| ret void |
| } |
| |
| declare void @foo() |
| |
| ; rdar://12755626 |
| define zeroext i1 @invert(i32 %flags, i32 %flag) nounwind { |
| ; CHECK: invert |
| ; CHECK: btl %eax, %ecx |
| ; CHECK: setae |
| entry: |
| %neg = xor i32 %flags, -1 |
| %shl = shl i32 1, %flag |
| %and = and i32 %shl, %neg |
| %tobool = icmp ne i32 %and, 0 |
| ret i1 %tobool |
| } |
