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dbc82e3483
Do (shl (add x, c1), c2) -> (add (shl x, c2), c1 << c2) This is already done for multiplies, but since multiplies by powers of two are turned into shifts, we also need to handle it here. This might want checks for isLegalAddImmediate to avoid transforming an add of a legal immediate with one that isn't. llvm-svn: 217610
278 lines
7.7 KiB
LLVM
278 lines
7.7 KiB
LLVM
; RUN: llc -march=arm64 -mtriple=arm64-apple-ios < %s | FileCheck %s
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;
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; <rdar://problem/13820218>
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define signext i16 @extendedLeftShiftcharToshortBy4(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftcharToshortBy4:
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; CHECK: add [[REG:w[0-9]+]], w0, #1
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; CHECK: sbfiz w0, [[REG]], #4, #8
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%inc = add i8 %a, 1
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%conv1 = sext i8 %inc to i32
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%shl = shl nsw i32 %conv1, 4
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%conv2 = trunc i32 %shl to i16
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ret i16 %conv2
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}
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define signext i16 @extendedRightShiftcharToshortBy4(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftcharToshortBy4:
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; CHECK: add [[REG:w[0-9]+]], w0, #1
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; CHECK: sbfx w0, [[REG]], #4, #4
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%inc = add i8 %a, 1
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%conv1 = sext i8 %inc to i32
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%shr4 = lshr i32 %conv1, 4
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%conv2 = trunc i32 %shr4 to i16
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ret i16 %conv2
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}
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define signext i16 @extendedLeftShiftcharToshortBy8(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftcharToshortBy8:
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; CHECK: add [[REG:w[0-9]+]], w0, #1
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; CHECK: sbfiz w0, [[REG]], #8, #8
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%inc = add i8 %a, 1
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%conv1 = sext i8 %inc to i32
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%shl = shl nsw i32 %conv1, 8
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%conv2 = trunc i32 %shl to i16
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ret i16 %conv2
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}
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define signext i16 @extendedRightShiftcharToshortBy8(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftcharToshortBy8:
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; CHECK: add [[REG:w[0-9]+]], w0, #1
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; CHECK: sxtb [[REG]], [[REG]]
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; CHECK: asr w0, [[REG]], #8
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%inc = add i8 %a, 1
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%conv1 = sext i8 %inc to i32
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%shr4 = lshr i32 %conv1, 8
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%conv2 = trunc i32 %shr4 to i16
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ret i16 %conv2
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}
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define i32 @extendedLeftShiftcharTointBy4(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftcharTointBy4:
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; CHECK: add [[REG:w[0-9]+]], w0, #1
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; CHECK: sbfiz w0, [[REG]], #4, #8
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%inc = add i8 %a, 1
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%conv = sext i8 %inc to i32
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%shl = shl nsw i32 %conv, 4
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ret i32 %shl
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}
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define i32 @extendedRightShiftcharTointBy4(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftcharTointBy4:
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; CHECK: add [[REG:w[0-9]+]], w0, #1
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; CHECK: sbfx w0, [[REG]], #4, #4
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%inc = add i8 %a, 1
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%conv = sext i8 %inc to i32
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%shr = ashr i32 %conv, 4
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ret i32 %shr
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}
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define i32 @extendedLeftShiftcharTointBy8(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftcharTointBy8:
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; CHECK: add [[REG:w[0-9]+]], w0, #1
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; CHECK: sbfiz w0, [[REG]], #8, #8
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%inc = add i8 %a, 1
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%conv = sext i8 %inc to i32
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%shl = shl nsw i32 %conv, 8
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ret i32 %shl
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}
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define i32 @extendedRightShiftcharTointBy8(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftcharTointBy8:
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; CHECK: add [[REG:w[0-9]+]], w0, #1
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; CHECK: sxtb [[REG]], [[REG]]
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; CHECK: asr w0, [[REG]], #8
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%inc = add i8 %a, 1
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%conv = sext i8 %inc to i32
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%shr = ashr i32 %conv, 8
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ret i32 %shr
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}
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define i64 @extendedLeftShiftcharToint64By4(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftcharToint64By4:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: sbfiz x0, x[[REG]], #4, #8
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%inc = add i8 %a, 1
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%conv = sext i8 %inc to i64
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%shl = shl nsw i64 %conv, 4
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ret i64 %shl
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}
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define i64 @extendedRightShiftcharToint64By4(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftcharToint64By4:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: sbfx x0, x[[REG]], #4, #4
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%inc = add i8 %a, 1
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%conv = sext i8 %inc to i64
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%shr = ashr i64 %conv, 4
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ret i64 %shr
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}
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define i64 @extendedLeftShiftcharToint64By8(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftcharToint64By8:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: sbfiz x0, x[[REG]], #8, #8
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%inc = add i8 %a, 1
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%conv = sext i8 %inc to i64
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%shl = shl nsw i64 %conv, 8
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ret i64 %shl
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}
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define i64 @extendedRightShiftcharToint64By8(i8 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftcharToint64By8:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: sxtb x[[REG]], w[[REG]]
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; CHECK: asr x0, x[[REG]], #8
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%inc = add i8 %a, 1
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%conv = sext i8 %inc to i64
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%shr = ashr i64 %conv, 8
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ret i64 %shr
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}
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define i32 @extendedLeftShiftshortTointBy4(i16 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftshortTointBy4:
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; CHECK: add [[REG:w[0-9]+]], w0, #1
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; CHECK: sbfiz w0, [[REG]], #4, #16
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%inc = add i16 %a, 1
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%conv = sext i16 %inc to i32
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%shl = shl nsw i32 %conv, 4
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ret i32 %shl
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}
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define i32 @extendedRightShiftshortTointBy4(i16 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftshortTointBy4:
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; CHECK: add [[REG:w[0-9]+]], w0, #1
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; CHECK: sbfx w0, [[REG]], #4, #12
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%inc = add i16 %a, 1
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%conv = sext i16 %inc to i32
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%shr = ashr i32 %conv, 4
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ret i32 %shr
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}
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define i32 @extendedLeftShiftshortTointBy16(i16 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftshortTointBy16:
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; CHECK: lsl [[REG:w[0-9]+]], w0, #16
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; CHECK: add w0, [[REG]], #16, lsl #12
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%inc = add i16 %a, 1
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%conv2 = zext i16 %inc to i32
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%shl = shl nuw i32 %conv2, 16
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ret i32 %shl
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}
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define i32 @extendedRightShiftshortTointBy16(i16 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftshortTointBy16:
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; CHECK: add [[REG:w[0-9]+]], w0, #1
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; CHECK: sxth [[REG]], [[REG]]
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; CHECK: asr w0, [[REG]], #16
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%inc = add i16 %a, 1
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%conv = sext i16 %inc to i32
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%shr = ashr i32 %conv, 16
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ret i32 %shr
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}
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define i64 @extendedLeftShiftshortToint64By4(i16 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftshortToint64By4:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: sbfiz x0, x[[REG]], #4, #16
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%inc = add i16 %a, 1
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%conv = sext i16 %inc to i64
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%shl = shl nsw i64 %conv, 4
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ret i64 %shl
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}
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define i64 @extendedRightShiftshortToint64By4(i16 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftshortToint64By4:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: sbfx x0, x[[REG]], #4, #12
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%inc = add i16 %a, 1
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%conv = sext i16 %inc to i64
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%shr = ashr i64 %conv, 4
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ret i64 %shr
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}
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define i64 @extendedLeftShiftshortToint64By16(i16 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftshortToint64By16:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: sbfiz x0, x[[REG]], #16, #16
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%inc = add i16 %a, 1
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%conv = sext i16 %inc to i64
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%shl = shl nsw i64 %conv, 16
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ret i64 %shl
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}
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define i64 @extendedRightShiftshortToint64By16(i16 signext %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftshortToint64By16:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: sxth x[[REG]], w[[REG]]
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; CHECK: asr x0, x[[REG]], #16
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%inc = add i16 %a, 1
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%conv = sext i16 %inc to i64
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%shr = ashr i64 %conv, 16
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ret i64 %shr
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}
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define i64 @extendedLeftShiftintToint64By4(i32 %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftintToint64By4:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: sbfiz x0, x[[REG]], #4, #32
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%inc = add nsw i32 %a, 1
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%conv = sext i32 %inc to i64
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%shl = shl nsw i64 %conv, 4
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ret i64 %shl
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}
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define i64 @extendedRightShiftintToint64By4(i32 %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftintToint64By4:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: sbfx x0, x[[REG]], #4, #28
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%inc = add nsw i32 %a, 1
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%conv = sext i32 %inc to i64
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%shr = ashr i64 %conv, 4
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ret i64 %shr
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}
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define i64 @extendedLeftShiftintToint64By32(i32 %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedLeftShiftintToint64By32:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: lsl x0, x[[REG]], #32
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%inc = add nsw i32 %a, 1
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%conv2 = zext i32 %inc to i64
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%shl = shl nuw i64 %conv2, 32
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ret i64 %shl
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}
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define i64 @extendedRightShiftintToint64By32(i32 %a) nounwind readnone ssp {
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entry:
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; CHECK-LABEL: extendedRightShiftintToint64By32:
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; CHECK: add w[[REG:[0-9]+]], w0, #1
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; CHECK: sxtw x[[REG]], w[[REG]]
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; CHECK: asr x0, x[[REG]], #32
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%inc = add nsw i32 %a, 1
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%conv = sext i32 %inc to i64
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%shr = ashr i64 %conv, 32
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ret i64 %shr
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}
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