llvm-6502/test/CodeGen/X86/bmi.ll
Craig Topper b1ff87ec86 [X86] Don't use GR64 register 'and with immediate' instructions if the immediate is zero in the upper 33-bits or upper 57-bits. Use GR32 instructions instead.
Previously the patterns didn't have high enough priority and we would only use the GR32 form if the only the upper 32 or 56 bits were zero.

Fixes PR23100.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234075 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-04 02:08:20 +00:00

393 lines
8.8 KiB
LLVM

; RUN: llc < %s -march=x86-64 -mattr=+bmi,+bmi2 | FileCheck %s
declare i8 @llvm.cttz.i8(i8, i1) nounwind readnone
declare i16 @llvm.cttz.i16(i16, i1) nounwind readnone
declare i32 @llvm.cttz.i32(i32, i1) nounwind readnone
declare i64 @llvm.cttz.i64(i64, i1) nounwind readnone
define i8 @t1(i8 %x) nounwind {
%tmp = tail call i8 @llvm.cttz.i8( i8 %x, i1 false )
ret i8 %tmp
; CHECK-LABEL: t1:
; CHECK: tzcntl
}
define i16 @t2(i16 %x) nounwind {
%tmp = tail call i16 @llvm.cttz.i16( i16 %x, i1 false )
ret i16 %tmp
; CHECK-LABEL: t2:
; CHECK: tzcntw
}
define i32 @t3(i32 %x) nounwind {
%tmp = tail call i32 @llvm.cttz.i32( i32 %x, i1 false )
ret i32 %tmp
; CHECK-LABEL: t3:
; CHECK: tzcntl
}
define i32 @tzcnt32_load(i32* %x) nounwind {
%x1 = load i32, i32* %x
%tmp = tail call i32 @llvm.cttz.i32(i32 %x1, i1 false )
ret i32 %tmp
; CHECK-LABEL: tzcnt32_load:
; CHECK: tzcntl ({{.*}})
}
define i64 @t4(i64 %x) nounwind {
%tmp = tail call i64 @llvm.cttz.i64( i64 %x, i1 false )
ret i64 %tmp
; CHECK-LABEL: t4:
; CHECK: tzcntq
}
define i8 @t5(i8 %x) nounwind {
%tmp = tail call i8 @llvm.cttz.i8( i8 %x, i1 true )
ret i8 %tmp
; CHECK-LABEL: t5:
; CHECK: tzcntl
}
define i16 @t6(i16 %x) nounwind {
%tmp = tail call i16 @llvm.cttz.i16( i16 %x, i1 true )
ret i16 %tmp
; CHECK-LABEL: t6:
; CHECK: tzcntw
}
define i32 @t7(i32 %x) nounwind {
%tmp = tail call i32 @llvm.cttz.i32( i32 %x, i1 true )
ret i32 %tmp
; CHECK-LABEL: t7:
; CHECK: tzcntl
}
define i64 @t8(i64 %x) nounwind {
%tmp = tail call i64 @llvm.cttz.i64( i64 %x, i1 true )
ret i64 %tmp
; CHECK-LABEL: t8:
; CHECK: tzcntq
}
define i32 @andn32(i32 %x, i32 %y) nounwind readnone {
%tmp1 = xor i32 %x, -1
%tmp2 = and i32 %y, %tmp1
ret i32 %tmp2
; CHECK-LABEL: andn32:
; CHECK: andnl
}
define i32 @andn32_load(i32 %x, i32* %y) nounwind readnone {
%y1 = load i32, i32* %y
%tmp1 = xor i32 %x, -1
%tmp2 = and i32 %y1, %tmp1
ret i32 %tmp2
; CHECK-LABEL: andn32_load:
; CHECK: andnl ({{.*}})
}
define i64 @andn64(i64 %x, i64 %y) nounwind readnone {
%tmp1 = xor i64 %x, -1
%tmp2 = and i64 %tmp1, %y
ret i64 %tmp2
; CHECK-LABEL: andn64:
; CHECK: andnq
}
define i32 @bextr32(i32 %x, i32 %y) nounwind readnone {
%tmp = tail call i32 @llvm.x86.bmi.bextr.32(i32 %x, i32 %y)
ret i32 %tmp
; CHECK-LABEL: bextr32:
; CHECK: bextrl
}
define i32 @bextr32_load(i32* %x, i32 %y) nounwind readnone {
%x1 = load i32, i32* %x
%tmp = tail call i32 @llvm.x86.bmi.bextr.32(i32 %x1, i32 %y)
ret i32 %tmp
; CHECK-LABEL: bextr32_load:
; CHECK: bextrl {{.*}}, ({{.*}}), {{.*}}
}
declare i32 @llvm.x86.bmi.bextr.32(i32, i32) nounwind readnone
define i32 @bextr32b(i32 %x) nounwind uwtable readnone ssp {
%1 = lshr i32 %x, 4
%2 = and i32 %1, 4095
ret i32 %2
; CHECK-LABEL: bextr32b:
; CHECK: bextrl
}
define i32 @bextr32b_load(i32* %x) nounwind uwtable readnone ssp {
%1 = load i32, i32* %x
%2 = lshr i32 %1, 4
%3 = and i32 %2, 4095
ret i32 %3
; CHECK-LABEL: bextr32b_load:
; CHECK: bextrl {{.*}}, ({{.*}}), {{.*}}
}
define i64 @bextr64(i64 %x, i64 %y) nounwind readnone {
%tmp = tail call i64 @llvm.x86.bmi.bextr.64(i64 %x, i64 %y)
ret i64 %tmp
; CHECK-LABEL: bextr64:
; CHECK: bextrq
}
declare i64 @llvm.x86.bmi.bextr.64(i64, i64) nounwind readnone
define i64 @bextr64b(i64 %x) nounwind uwtable readnone ssp {
%1 = lshr i64 %x, 4
%2 = and i64 %1, 4095
ret i64 %2
; CHECK-LABEL: bextr64b:
; CHECK: bextrq
}
define i64 @bextr64b_load(i64* %x) {
%1 = load i64, i64* %x, align 8
%2 = lshr i64 %1, 4
%3 = and i64 %2, 4095
ret i64 %3
; CHECK-LABEL: bextr64b_load:
; CHECK: bextrq {{.*}}, ({{.*}}), {{.*}}
}
define i32 @non_bextr32(i32 %x) {
entry:
%shr = lshr i32 %x, 2
%and = and i32 %shr, 111
ret i32 %and
; CHECK-LABEL: non_bextr32:
; CHECK: shrl $2
; CHECK: andl $111
}
define i64 @non_bextr64(i64 %x) {
entry:
%shr = lshr i64 %x, 2
%and = and i64 %shr, 8589934590
ret i64 %and
; CHECK-LABEL: non_bextr64:
; CHECK: shrq $2
; CHECK: movabsq $8589934590
; CHECK: andq
}
define i32 @bzhi32(i32 %x, i32 %y) nounwind readnone {
%tmp = tail call i32 @llvm.x86.bmi.bzhi.32(i32 %x, i32 %y)
ret i32 %tmp
; CHECK-LABEL: bzhi32:
; CHECK: bzhil
}
define i32 @bzhi32_load(i32* %x, i32 %y) nounwind readnone {
%x1 = load i32, i32* %x
%tmp = tail call i32 @llvm.x86.bmi.bzhi.32(i32 %x1, i32 %y)
ret i32 %tmp
; CHECK-LABEL: bzhi32_load:
; CHECK: bzhil {{.*}}, ({{.*}}), {{.*}}
}
declare i32 @llvm.x86.bmi.bzhi.32(i32, i32) nounwind readnone
define i64 @bzhi64(i64 %x, i64 %y) nounwind readnone {
%tmp = tail call i64 @llvm.x86.bmi.bzhi.64(i64 %x, i64 %y)
ret i64 %tmp
; CHECK-LABEL: bzhi64:
; CHECK: bzhiq
}
declare i64 @llvm.x86.bmi.bzhi.64(i64, i64) nounwind readnone
define i32 @bzhi32b(i32 %x, i8 zeroext %index) #0 {
entry:
%conv = zext i8 %index to i32
%shl = shl i32 1, %conv
%sub = add nsw i32 %shl, -1
%and = and i32 %sub, %x
ret i32 %and
; CHECK-LABEL: bzhi32b:
; CHECK: bzhil
}
define i32 @bzhi32b_load(i32* %w, i8 zeroext %index) #0 {
entry:
%x = load i32, i32* %w
%conv = zext i8 %index to i32
%shl = shl i32 1, %conv
%sub = add nsw i32 %shl, -1
%and = and i32 %sub, %x
ret i32 %and
; CHECK-LABEL: bzhi32b_load:
; CHECK: bzhil {{.*}}, ({{.*}}), {{.*}}
}
define i32 @bzhi32c(i32 %x, i8 zeroext %index) #0 {
entry:
%conv = zext i8 %index to i32
%shl = shl i32 1, %conv
%sub = add nsw i32 %shl, -1
%and = and i32 %x, %sub
ret i32 %and
; CHECK-LABEL: bzhi32c:
; CHECK: bzhil
}
define i64 @bzhi64b(i64 %x, i8 zeroext %index) #0 {
entry:
%conv = zext i8 %index to i64
%shl = shl i64 1, %conv
%sub = add nsw i64 %shl, -1
%and = and i64 %x, %sub
ret i64 %and
; CHECK-LABEL: bzhi64b:
; CHECK: bzhiq
}
define i64 @bzhi64_constant_mask(i64 %x) #0 {
entry:
%and = and i64 %x, 4611686018427387903
ret i64 %and
; CHECK-LABEL: bzhi64_constant_mask:
; CHECK: movb $62, %al
; CHECK: bzhiq %rax, %r[[ARG1:di|cx]], %rax
}
define i64 @bzhi64_small_constant_mask(i64 %x) #0 {
entry:
%and = and i64 %x, 2147483647
ret i64 %and
; CHECK-LABEL: bzhi64_small_constant_mask:
; CHECK: andl $2147483647, %e[[ARG1]]
}
define i32 @blsi32(i32 %x) nounwind readnone {
%tmp = sub i32 0, %x
%tmp2 = and i32 %x, %tmp
ret i32 %tmp2
; CHECK-LABEL: blsi32:
; CHECK: blsil
}
define i32 @blsi32_load(i32* %x) nounwind readnone {
%x1 = load i32, i32* %x
%tmp = sub i32 0, %x1
%tmp2 = and i32 %x1, %tmp
ret i32 %tmp2
; CHECK-LABEL: blsi32_load:
; CHECK: blsil ({{.*}})
}
define i64 @blsi64(i64 %x) nounwind readnone {
%tmp = sub i64 0, %x
%tmp2 = and i64 %tmp, %x
ret i64 %tmp2
; CHECK-LABEL: blsi64:
; CHECK: blsiq
}
define i32 @blsmsk32(i32 %x) nounwind readnone {
%tmp = sub i32 %x, 1
%tmp2 = xor i32 %x, %tmp
ret i32 %tmp2
; CHECK-LABEL: blsmsk32:
; CHECK: blsmskl
}
define i32 @blsmsk32_load(i32* %x) nounwind readnone {
%x1 = load i32, i32* %x
%tmp = sub i32 %x1, 1
%tmp2 = xor i32 %x1, %tmp
ret i32 %tmp2
; CHECK-LABEL: blsmsk32_load:
; CHECK: blsmskl ({{.*}})
}
define i64 @blsmsk64(i64 %x) nounwind readnone {
%tmp = sub i64 %x, 1
%tmp2 = xor i64 %tmp, %x
ret i64 %tmp2
; CHECK-LABEL: blsmsk64:
; CHECK: blsmskq
}
define i32 @blsr32(i32 %x) nounwind readnone {
%tmp = sub i32 %x, 1
%tmp2 = and i32 %x, %tmp
ret i32 %tmp2
; CHECK-LABEL: blsr32:
; CHECK: blsrl
}
define i32 @blsr32_load(i32* %x) nounwind readnone {
%x1 = load i32, i32* %x
%tmp = sub i32 %x1, 1
%tmp2 = and i32 %x1, %tmp
ret i32 %tmp2
; CHECK-LABEL: blsr32_load:
; CHECK: blsrl ({{.*}})
}
define i64 @blsr64(i64 %x) nounwind readnone {
%tmp = sub i64 %x, 1
%tmp2 = and i64 %tmp, %x
ret i64 %tmp2
; CHECK-LABEL: blsr64:
; CHECK: blsrq
}
define i32 @pdep32(i32 %x, i32 %y) nounwind readnone {
%tmp = tail call i32 @llvm.x86.bmi.pdep.32(i32 %x, i32 %y)
ret i32 %tmp
; CHECK-LABEL: pdep32:
; CHECK: pdepl
}
define i32 @pdep32_load(i32 %x, i32* %y) nounwind readnone {
%y1 = load i32, i32* %y
%tmp = tail call i32 @llvm.x86.bmi.pdep.32(i32 %x, i32 %y1)
ret i32 %tmp
; CHECK-LABEL: pdep32_load:
; CHECK: pdepl ({{.*}})
}
declare i32 @llvm.x86.bmi.pdep.32(i32, i32) nounwind readnone
define i64 @pdep64(i64 %x, i64 %y) nounwind readnone {
%tmp = tail call i64 @llvm.x86.bmi.pdep.64(i64 %x, i64 %y)
ret i64 %tmp
; CHECK-LABEL: pdep64:
; CHECK: pdepq
}
declare i64 @llvm.x86.bmi.pdep.64(i64, i64) nounwind readnone
define i32 @pext32(i32 %x, i32 %y) nounwind readnone {
%tmp = tail call i32 @llvm.x86.bmi.pext.32(i32 %x, i32 %y)
ret i32 %tmp
; CHECK-LABEL: pext32:
; CHECK: pextl
}
define i32 @pext32_load(i32 %x, i32* %y) nounwind readnone {
%y1 = load i32, i32* %y
%tmp = tail call i32 @llvm.x86.bmi.pext.32(i32 %x, i32 %y1)
ret i32 %tmp
; CHECK-LABEL: pext32_load:
; CHECK: pextl ({{.*}})
}
declare i32 @llvm.x86.bmi.pext.32(i32, i32) nounwind readnone
define i64 @pext64(i64 %x, i64 %y) nounwind readnone {
%tmp = tail call i64 @llvm.x86.bmi.pext.64(i64 %x, i64 %y)
ret i64 %tmp
; CHECK-LABEL: pext64:
; CHECK: pextq
}
declare i64 @llvm.x86.bmi.pext.64(i64, i64) nounwind readnone