237 lines
6.2 KiB
LLVM
237 lines
6.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
|
|
; RUN: llc -mtriple=i686-unknown -verify-machineinstrs < %s | FileCheck %s
|
|
; RUN: opt < %s -codegenprepare -S -mtriple=x86_64-unknown-unknown | FileCheck --check-prefix=CHECK-CGP %s
|
|
|
|
@A = global i32 zeroinitializer
|
|
@B = global i32 zeroinitializer
|
|
@C = global i32 zeroinitializer
|
|
|
|
; Test that 'and' is sunk into bb0.
|
|
define i32 @and_sink1(i32 %a, i1 %c) {
|
|
; CHECK-LABEL: and_sink1:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: testb $1, {{[0-9]+}}(%esp)
|
|
; CHECK-NEXT: je .LBB0_3
|
|
; CHECK-NEXT: # %bb.1: # %bb0
|
|
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
; CHECK-NEXT: testb $4, %al
|
|
; CHECK-NEXT: movl $0, A
|
|
; CHECK-NEXT: jne .LBB0_3
|
|
; CHECK-NEXT: # %bb.2: # %bb1
|
|
; CHECK-NEXT: movl $1, %eax
|
|
; CHECK-NEXT: retl
|
|
; CHECK-NEXT: .LBB0_3: # %bb2
|
|
; CHECK-NEXT: xorl %eax, %eax
|
|
; CHECK-NEXT: retl
|
|
|
|
; CHECK-CGP-LABEL: @and_sink1(
|
|
; CHECK-CGP-NOT: and i32
|
|
%and = and i32 %a, 4
|
|
br i1 %c, label %bb0, label %bb2
|
|
bb0:
|
|
; CHECK-CGP-LABEL: bb0:
|
|
; CHECK-CGP: and i32
|
|
; CHECK-CGP-NEXT: icmp eq i32
|
|
; CHECK-CGP-NEXT: store
|
|
; CHECK-CGP-NEXT: br
|
|
%cmp = icmp eq i32 %and, 0
|
|
store i32 0, i32* @A
|
|
br i1 %cmp, label %bb1, label %bb2
|
|
bb1:
|
|
ret i32 1
|
|
bb2:
|
|
ret i32 0
|
|
}
|
|
|
|
; Test that both 'and' and cmp get sunk to bb1.
|
|
define i32 @and_sink2(i32 %a, i1 %c, i1 %c2) {
|
|
; CHECK-LABEL: and_sink2:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: movl $0, A
|
|
; CHECK-NEXT: testb $1, {{[0-9]+}}(%esp)
|
|
; CHECK-NEXT: je .LBB1_5
|
|
; CHECK-NEXT: # %bb.1: # %bb0.preheader
|
|
; CHECK-NEXT: movb {{[0-9]+}}(%esp), %al
|
|
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
|
; CHECK-NEXT: .p2align 4, 0x90
|
|
; CHECK-NEXT: .LBB1_2: # %bb0
|
|
; CHECK-NEXT: # =>This Inner Loop Header: Depth=1
|
|
; CHECK-NEXT: movl $0, B
|
|
; CHECK-NEXT: testb $1, %al
|
|
; CHECK-NEXT: je .LBB1_5
|
|
; CHECK-NEXT: # %bb.3: # %bb1
|
|
; CHECK-NEXT: # in Loop: Header=BB1_2 Depth=1
|
|
; CHECK-NEXT: testb $4, %cl
|
|
; CHECK-NEXT: movl $0, C
|
|
; CHECK-NEXT: jne .LBB1_2
|
|
; CHECK-NEXT: # %bb.4: # %bb2
|
|
; CHECK-NEXT: movl $1, %eax
|
|
; CHECK-NEXT: retl
|
|
; CHECK-NEXT: .LBB1_5: # %bb3
|
|
; CHECK-NEXT: xorl %eax, %eax
|
|
; CHECK-NEXT: retl
|
|
|
|
; CHECK-CGP-LABEL: @and_sink2(
|
|
; CHECK-CGP-NOT: and i32
|
|
%and = and i32 %a, 4
|
|
store i32 0, i32* @A
|
|
br i1 %c, label %bb0, label %bb3
|
|
bb0:
|
|
; CHECK-CGP-LABEL: bb0:
|
|
; CHECK-CGP-NOT: and i32
|
|
; CHECK-CGP-NOT: icmp
|
|
%cmp = icmp eq i32 %and, 0
|
|
store i32 0, i32* @B
|
|
br i1 %c2, label %bb1, label %bb3
|
|
bb1:
|
|
; CHECK-CGP-LABEL: bb1:
|
|
; CHECK-CGP: and i32
|
|
; CHECK-CGP-NEXT: icmp eq i32
|
|
; CHECK-CGP-NEXT: store
|
|
; CHECK-CGP-NEXT: br
|
|
store i32 0, i32* @C
|
|
br i1 %cmp, label %bb2, label %bb0
|
|
bb2:
|
|
ret i32 1
|
|
bb3:
|
|
ret i32 0
|
|
}
|
|
|
|
; Test that CodeGenPrepare doesn't get stuck in a loop sinking and hoisting a masked load.
|
|
define i32 @and_sink3(i1 %c, i32* %p) {
|
|
; CHECK-LABEL: and_sink3:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: testb $1, {{[0-9]+}}(%esp)
|
|
; CHECK-NEXT: je .LBB2_3
|
|
; CHECK-NEXT: # %bb.1: # %bb0
|
|
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
; CHECK-NEXT: movzbl (%eax), %eax
|
|
; CHECK-NEXT: testl %eax, %eax
|
|
; CHECK-NEXT: movl $0, A
|
|
; CHECK-NEXT: je .LBB2_2
|
|
; CHECK-NEXT: .LBB2_3: # %bb2
|
|
; CHECK-NEXT: xorl %eax, %eax
|
|
; CHECK-NEXT: retl
|
|
; CHECK-NEXT: .LBB2_2: # %bb1
|
|
; CHECK-NEXT: movl $1, %eax
|
|
; CHECK-NEXT: retl
|
|
|
|
; CHECK-CGP-LABEL: @and_sink3(
|
|
; CHECK-CGP: load i32
|
|
; CHECK-CGP-NEXT: and i32
|
|
%load = load i32, i32* %p
|
|
%and = and i32 %load, 255
|
|
br i1 %c, label %bb0, label %bb2
|
|
bb0:
|
|
; CHECK-CGP-LABEL: bb0:
|
|
; CHECK-CGP-NOT: and i32
|
|
; CHECK-CGP: icmp eq i32
|
|
%cmp = icmp eq i32 %and, 0
|
|
store i32 0, i32* @A
|
|
br i1 %cmp, label %bb1, label %bb2
|
|
bb1:
|
|
ret i32 1
|
|
bb2:
|
|
ret i32 0
|
|
}
|
|
|
|
; Test that CodeGenPrepare sinks/duplicates non-immediate 'and'.
|
|
define i32 @and_sink4(i32 %a, i32 %b, i1 %c) {
|
|
; CHECK-LABEL: and_sink4:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: testb $1, {{[0-9]+}}(%esp)
|
|
; CHECK-NEXT: je .LBB3_4
|
|
; CHECK-NEXT: # %bb.1: # %bb0
|
|
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
|
; CHECK-NEXT: testl %eax, %ecx
|
|
; CHECK-NEXT: movl $0, A
|
|
; CHECK-NEXT: jne .LBB3_4
|
|
; CHECK-NEXT: # %bb.2: # %bb1
|
|
; CHECK-NEXT: leal (%ecx,%eax), %edx
|
|
; CHECK-NEXT: testl %eax, %ecx
|
|
; CHECK-NEXT: movl %edx, B
|
|
; CHECK-NEXT: je .LBB3_3
|
|
; CHECK-NEXT: .LBB3_4: # %bb3
|
|
; CHECK-NEXT: xorl %eax, %eax
|
|
; CHECK-NEXT: retl
|
|
; CHECK-NEXT: .LBB3_3: # %bb2
|
|
; CHECK-NEXT: movl $1, %eax
|
|
; CHECK-NEXT: retl
|
|
|
|
; CHECK-CGP-LABEL: @and_sink4(
|
|
; CHECK-CGP-NOT: and i32
|
|
; CHECK-CGP-NOT: icmp
|
|
%and = and i32 %a, %b
|
|
%cmp = icmp eq i32 %and, 0
|
|
br i1 %c, label %bb0, label %bb3
|
|
bb0:
|
|
; CHECK-CGP-LABEL: bb0:
|
|
; CHECK-CGP: and i32
|
|
; CHECK-CGP-NEXT: icmp eq i32
|
|
store i32 0, i32* @A
|
|
br i1 %cmp, label %bb1, label %bb3
|
|
bb1:
|
|
; CHECK-CGP-LABEL: bb1:
|
|
; CHECK-CGP: and i32
|
|
; CHECK-CGP-NEXT: icmp eq i32
|
|
%add = add i32 %a, %b
|
|
store i32 %add, i32* @B
|
|
br i1 %cmp, label %bb2, label %bb3
|
|
bb2:
|
|
ret i32 1
|
|
bb3:
|
|
ret i32 0
|
|
}
|
|
|
|
|
|
; Test that CodeGenPrepare doesn't sink/duplicate non-immediate 'and'
|
|
; when it would increase register pressure.
|
|
define i32 @and_sink5(i32 %a, i32 %b, i32 %a2, i32 %b2, i1 %c) {
|
|
; CHECK-LABEL: and_sink5:
|
|
; CHECK: # %bb.0:
|
|
; CHECK-NEXT: testb $1, {{[0-9]+}}(%esp)
|
|
; CHECK-NEXT: je .LBB4_4
|
|
; CHECK-NEXT: # %bb.1: # %bb0
|
|
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
|
|
; CHECK-NEXT: andl {{[0-9]+}}(%esp), %eax
|
|
; CHECK-NEXT: movl $0, A
|
|
; CHECK-NEXT: jne .LBB4_4
|
|
; CHECK-NEXT: # %bb.2: # %bb1
|
|
; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
|
|
; CHECK-NEXT: addl {{[0-9]+}}(%esp), %ecx
|
|
; CHECK-NEXT: testl %eax, %eax
|
|
; CHECK-NEXT: movl %ecx, B
|
|
; CHECK-NEXT: je .LBB4_3
|
|
; CHECK-NEXT: .LBB4_4: # %bb3
|
|
; CHECK-NEXT: xorl %eax, %eax
|
|
; CHECK-NEXT: retl
|
|
; CHECK-NEXT: .LBB4_3: # %bb2
|
|
; CHECK-NEXT: movl $1, %eax
|
|
; CHECK-NEXT: retl
|
|
|
|
; CHECK-CGP-LABEL: @and_sink5(
|
|
; CHECK-CGP: and i32
|
|
; CHECK-CGP-NOT: icmp
|
|
%and = and i32 %a, %b
|
|
%cmp = icmp eq i32 %and, 0
|
|
br i1 %c, label %bb0, label %bb3
|
|
bb0:
|
|
; CHECK-CGP-LABEL: bb0:
|
|
; CHECK-CGP-NOT: and i32
|
|
; CHECK-CGP: icmp eq i32
|
|
store i32 0, i32* @A
|
|
br i1 %cmp, label %bb1, label %bb3
|
|
bb1:
|
|
; CHECK-CGP-LABEL: bb1:
|
|
; CHECK-CGP-NOT: and i32
|
|
; CHECK-CGP: icmp eq i32
|
|
%add = add i32 %a2, %b2
|
|
store i32 %add, i32* @B
|
|
br i1 %cmp, label %bb2, label %bb3
|
|
bb2:
|
|
ret i32 1
|
|
bb3:
|
|
ret i32 0
|
|
}
|