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llvm-mirror/test/CodeGen/AArch64/arm64-promote-const.ll
Tim Northover ca0f4dc4f0 AArch64/ARM64: move ARM64 into AArch64's place
This commit starts with a "git mv ARM64 AArch64" and continues out
from there, renaming the C++ classes, intrinsics, and other
target-local objects for consistency.

"ARM64" test directories are also moved, and tests that began their
life in ARM64 use an arm64 triple, those from AArch64 use an aarch64
triple. Both should be equivalent though.

This finishes the AArch64 merge, and everyone should feel free to
continue committing as normal now.

llvm-svn: 209577
2014-05-24 12:50:23 +00:00

256 lines
12 KiB
LLVM

; Disable machine cse to stress the different path of the algorithm.
; Otherwise, we always fall in the simple case, i.e., only one definition.
; RUN: llc < %s -mtriple=arm64-apple-ios7.0 -disable-machine-cse -aarch64-stress-promote-const -mcpu=cyclone | FileCheck -check-prefix=PROMOTED %s
; The REGULAR run just checks that the inputs passed to promote const expose
; the appropriate patterns.
; RUN: llc < %s -mtriple=arm64-apple-ios7.0 -disable-machine-cse -aarch64-promote-const=false -mcpu=cyclone | FileCheck -check-prefix=REGULAR %s
%struct.uint8x16x4_t = type { [4 x <16 x i8>] }
; Constant is a structure
define %struct.uint8x16x4_t @test1() {
; PROMOTED-LABEL: test1:
; Promote constant has created a big constant for the whole structure
; PROMOTED: adrp [[PAGEADDR:x[0-9]+]], __PromotedConst@PAGE
; PROMOTED: add [[BASEADDR:x[0-9]+]], [[PAGEADDR]], __PromotedConst@PAGEOFF
; Destination registers are defined by the ABI
; PROMOTED-NEXT: ldp q0, q1, {{\[}}[[BASEADDR]]]
; PROMOTED-NEXT: ldp q2, q3, {{\[}}[[BASEADDR]], #32]
; PROMOTED-NEXT: ret
; REGULAR-LABEL: test1:
; Regular access is quite bad, it performs 4 loads, one for each chunk of
; the structure
; REGULAR: adrp [[PAGEADDR:x[0-9]+]], [[CSTLABEL:lCP.*]]@PAGE
; Destination registers are defined by the ABI
; REGULAR: ldr q0, {{\[}}[[PAGEADDR]], [[CSTLABEL]]@PAGEOFF]
; REGULAR: adrp [[PAGEADDR:x[0-9]+]], [[CSTLABEL:lCP.*]]@PAGE
; REGULAR: ldr q1, {{\[}}[[PAGEADDR]], [[CSTLABEL]]@PAGEOFF]
; REGULAR: adrp [[PAGEADDR2:x[0-9]+]], [[CSTLABEL2:lCP.*]]@PAGE
; REGULAR: ldr q2, {{\[}}[[PAGEADDR2]], [[CSTLABEL2]]@PAGEOFF]
; REGULAR: adrp [[PAGEADDR3:x[0-9]+]], [[CSTLABEL3:lCP.*]]@PAGE
; REGULAR: ldr q3, {{\[}}[[PAGEADDR3]], [[CSTLABEL3]]@PAGEOFF]
; REGULAR-NEXT: ret
entry:
ret %struct.uint8x16x4_t { [4 x <16 x i8>] [<16 x i8> <i8 -40, i8 -93, i8 -118, i8 -99, i8 -75, i8 -105, i8 74, i8 -110, i8 62, i8 -115, i8 -119, i8 -120, i8 34, i8 -124, i8 0, i8 -128>, <16 x i8> <i8 32, i8 124, i8 121, i8 120, i8 8, i8 117, i8 -56, i8 113, i8 -76, i8 110, i8 -53, i8 107, i8 7, i8 105, i8 103, i8 102>, <16 x i8> <i8 -24, i8 99, i8 -121, i8 97, i8 66, i8 95, i8 24, i8 93, i8 6, i8 91, i8 12, i8 89, i8 39, i8 87, i8 86, i8 85>, <16 x i8> <i8 -104, i8 83, i8 -20, i8 81, i8 81, i8 80, i8 -59, i8 78, i8 73, i8 77, i8 -37, i8 75, i8 122, i8 74, i8 37, i8 73>] }
}
; Two different uses of the same constant in the same basic block
define <16 x i8> @test2(<16 x i8> %arg) {
entry:
; PROMOTED-LABEL: test2:
; In stress mode, constant vector are promoted
; PROMOTED: adrp [[PAGEADDR:x[0-9]+]], [[CSTV1:__PromotedConst[0-9]+]]@PAGE
; PROMOTED: add [[BASEADDR:x[0-9]+]], [[PAGEADDR]], [[CSTV1]]@PAGEOFF
; PROMOTED: ldr q[[REGNUM:[0-9]+]], {{\[}}[[BASEADDR]]]
; Destination register is defined by ABI
; PROMOTED-NEXT: add.16b v0, v0, v[[REGNUM]]
; PROMOTED-NEXT: mla.16b v0, v0, v[[REGNUM]]
; PROMOTED-NEXT: ret
; REGULAR-LABEL: test2:
; Regular access is strickly the same as promoted access.
; The difference is that the address (and thus the space in memory) is not
; shared between constants
; REGULAR: adrp [[PAGEADDR:x[0-9]+]], [[CSTLABEL:lCP.*]]@PAGE
; REGULAR: ldr q[[REGNUM:[0-9]+]], {{\[}}[[PAGEADDR]], [[CSTLABEL]]@PAGEOFF]
; Destination register is defined by ABI
; REGULAR-NEXT: add.16b v0, v0, v[[REGNUM]]
; REGULAR-NEXT: mla.16b v0, v0, v[[REGNUM]]
; REGULAR-NEXT: ret
%add.i = add <16 x i8> %arg, <i8 -40, i8 -93, i8 -118, i8 -99, i8 -75, i8 -105, i8 74, i8 -110, i8 62, i8 -115, i8 -119, i8 -120, i8 34, i8 -124, i8 0, i8 -128>
%mul.i = mul <16 x i8> %add.i, <i8 -40, i8 -93, i8 -118, i8 -99, i8 -75, i8 -105, i8 74, i8 -110, i8 62, i8 -115, i8 -119, i8 -120, i8 34, i8 -124, i8 0, i8 -128>
%add.i9 = add <16 x i8> %add.i, %mul.i
ret <16 x i8> %add.i9
}
; Two different uses of the sane constant in two different basic blocks,
; one dominates the other
define <16 x i8> @test3(<16 x i8> %arg, i32 %path) {
; PROMOTED-LABEL: test3:
; In stress mode, constant vector are promoted
; Since, the constant is the same as the previous function,
; the same address must be used
; PROMOTED: adrp [[PAGEADDR:x[0-9]+]], [[CSTV1]]@PAGE
; PROMOTED: add [[BASEADDR:x[0-9]+]], [[PAGEADDR]], [[CSTV1]]@PAGEOFF
; PROMOTED-NEXT: ldr q[[REGNUM:[0-9]+]], {{\[}}[[BASEADDR]]]
; Destination register is defined by ABI
; PROMOTED-NEXT: add.16b v0, v0, v[[REGNUM]]
; PROMOTED-NEXT: cbnz w0, [[LABEL:LBB.*]]
; Next BB
; PROMOTED: adrp [[PAGEADDR:x[0-9]+]], [[CSTV2:__PromotedConst[0-9]+]]@PAGE
; PROMOTED: add [[BASEADDR:x[0-9]+]], [[PAGEADDR]], [[CSTV2]]@PAGEOFF
; PROMOTED-NEXT: ldr q[[REGNUM]], {{\[}}[[BASEADDR]]]
; Next BB
; PROMOTED-NEXT: [[LABEL]]:
; PROMOTED-NEXT: mul.16b [[DESTV:v[0-9]+]], v0, v[[REGNUM]]
; PROMOTED-NEXT: add.16b v0, v0, [[DESTV]]
; PROMOTED-NEXT: ret
; REGULAR-LABEL: test3:
; Regular mode does not elimitate common sub expression by its own.
; In other words, the same loads appears several times.
; REGULAR: adrp [[PAGEADDR:x[0-9]+]], [[CSTLABEL1:lCP.*]]@PAGE
; REGULAR-NEXT: ldr q[[REGNUM:[0-9]+]], {{\[}}[[PAGEADDR]], [[CSTLABEL1]]@PAGEOFF]
; Destination register is defined by ABI
; REGULAR-NEXT: add.16b v0, v0, v[[REGNUM]]
; REGULAR-NEXT: cbz w0, [[LABELelse:LBB.*]]
; Next BB
; Redundant load
; REGULAR: adrp [[PAGEADDR:x[0-9]+]], [[CSTLABEL1]]@PAGE
; REGULAR-NEXT: ldr q[[REGNUM]], {{\[}}[[PAGEADDR]], [[CSTLABEL1]]@PAGEOFF]
; REGULAR-NEXT: b [[LABELend:LBB.*]]
; Next BB
; REGULAR-NEXT: [[LABELelse]]
; REGULAR-NEXT: adrp [[PAGEADDR:x[0-9]+]], [[CSTLABEL2:lCP.*]]@PAGE
; REGULAR-NEXT: ldr q[[REGNUM]], {{\[}}[[PAGEADDR]], [[CSTLABEL2]]@PAGEOFF]
; Next BB
; REGULAR-NEXT: [[LABELend]]:
; REGULAR-NEXT: mul.16b [[DESTV:v[0-9]+]], v0, v[[REGNUM]]
; REGULAR-NEXT: add.16b v0, v0, [[DESTV]]
; REGULAR-NEXT: ret
entry:
%add.i = add <16 x i8> %arg, <i8 -40, i8 -93, i8 -118, i8 -99, i8 -75, i8 -105, i8 74, i8 -110, i8 62, i8 -115, i8 -119, i8 -120, i8 34, i8 -124, i8 0, i8 -128>
%tobool = icmp eq i32 %path, 0
br i1 %tobool, label %if.else, label %if.then
if.then: ; preds = %entry
%mul.i13 = mul <16 x i8> %add.i, <i8 -40, i8 -93, i8 -118, i8 -99, i8 -75, i8 -105, i8 74, i8 -110, i8 62, i8 -115, i8 -119, i8 -120, i8 34, i8 -124, i8 0, i8 -128>
br label %if.end
if.else: ; preds = %entry
%mul.i = mul <16 x i8> %add.i, <i8 -24, i8 99, i8 -121, i8 97, i8 66, i8 95, i8 24, i8 93, i8 6, i8 91, i8 12, i8 89, i8 39, i8 87, i8 86, i8 85>
br label %if.end
if.end: ; preds = %if.else, %if.then
%ret2.0 = phi <16 x i8> [ %mul.i13, %if.then ], [ %mul.i, %if.else ]
%add.i12 = add <16 x i8> %add.i, %ret2.0
ret <16 x i8> %add.i12
}
; Two different uses of the sane constant in two different basic blocks,
; none dominates the other
define <16 x i8> @test4(<16 x i8> %arg, i32 %path) {
; PROMOTED-LABEL: test4:
; In stress mode, constant vector are promoted
; Since, the constant is the same as the previous function,
; the same address must be used
; PROMOTED: adrp [[PAGEADDR:x[0-9]+]], [[CSTV1]]@PAGE
; PROMOTED: add [[BASEADDR:x[0-9]+]], [[PAGEADDR]], [[CSTV1]]@PAGEOFF
; PROMOTED-NEXT: ldr q[[REGNUM:[0-9]+]], {{\[}}[[BASEADDR]]]
; Destination register is defined by ABI
; PROMOTED-NEXT: add.16b v0, v0, v[[REGNUM]]
; PROMOTED-NEXT: cbz w0, [[LABEL:LBB.*]]
; Next BB
; PROMOTED: mul.16b v0, v0, v[[REGNUM]]
; Next BB
; PROMOTED-NEXT: [[LABEL]]:
; PROMOTED-NEXT: ret
; REGULAR-LABEL: test4:
; REGULAR: adrp [[PAGEADDR:x[0-9]+]], [[CSTLABEL3:lCP.*]]@PAGE
; REGULAR-NEXT: ldr q[[REGNUM:[0-9]+]], {{\[}}[[PAGEADDR]], [[CSTLABEL3]]@PAGEOFF]
; Destination register is defined by ABI
; REGULAR-NEXT: add.16b v0, v0, v[[REGNUM]]
; REGULAR-NEXT: cbz w0, [[LABEL:LBB.*]]
; Next BB
; Redundant expression
; REGULAR: adrp [[PAGEADDR:x[0-9]+]], [[CSTLABEL3]]@PAGE
; REGULAR-NEXT: ldr q[[REGNUM:[0-9]+]], {{\[}}[[PAGEADDR]], [[CSTLABEL3]]@PAGEOFF]
; Destination register is defined by ABI
; REGULAR-NEXT: mul.16b v0, v0, v[[REGNUM]]
; Next BB
; REGULAR-NEXT: [[LABEL]]:
; REGULAR-NEXT: ret
entry:
%add.i = add <16 x i8> %arg, <i8 -40, i8 -93, i8 -118, i8 -99, i8 -75, i8 -105, i8 74, i8 -110, i8 62, i8 -115, i8 -119, i8 -120, i8 34, i8 -124, i8 0, i8 -128>
%tobool = icmp eq i32 %path, 0
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %entry
%mul.i = mul <16 x i8> %add.i, <i8 -40, i8 -93, i8 -118, i8 -99, i8 -75, i8 -105, i8 74, i8 -110, i8 62, i8 -115, i8 -119, i8 -120, i8 34, i8 -124, i8 0, i8 -128>
br label %if.end
if.end: ; preds = %entry, %if.then
%ret.0 = phi <16 x i8> [ %mul.i, %if.then ], [ %add.i, %entry ]
ret <16 x i8> %ret.0
}
; Two different uses of the sane constant in two different basic blocks,
; one is in a phi.
define <16 x i8> @test5(<16 x i8> %arg, i32 %path) {
; PROMOTED-LABEL: test5:
; In stress mode, constant vector are promoted
; Since, the constant is the same as the previous function,
; the same address must be used
; PROMOTED: adrp [[PAGEADDR:x[0-9]+]], [[CSTV1]]@PAGE
; PROMOTED: add [[BASEADDR:x[0-9]+]], [[PAGEADDR]], [[CSTV1]]@PAGEOFF
; PROMOTED-NEXT: ldr q[[REGNUM:[0-9]+]], {{\[}}[[BASEADDR]]]
; PROMOTED-NEXT: cbz w0, [[LABEL:LBB.*]]
; Next BB
; PROMOTED: add.16b [[DESTV:v[0-9]+]], v0, v[[REGNUM]]
; PROMOTED-NEXT: mul.16b v[[REGNUM]], [[DESTV]], v[[REGNUM]]
; Next BB
; PROMOTED-NEXT: [[LABEL]]:
; PROMOTED-NEXT: mul.16b [[TMP1:v[0-9]+]], v[[REGNUM]], v[[REGNUM]]
; PROMOTED-NEXT: mul.16b [[TMP2:v[0-9]+]], [[TMP1]], [[TMP1]]
; PROMOTED-NEXT: mul.16b [[TMP3:v[0-9]+]], [[TMP2]], [[TMP2]]
; PROMOTED-NEXT: mul.16b v0, [[TMP3]], [[TMP3]]
; PROMOTED-NEXT: ret
; REGULAR-LABEL: test5:
; REGULAR: cbz w0, [[LABELelse:LBB.*]]
; Next BB
; REGULAR: adrp [[PAGEADDR:x[0-9]+]], [[CSTLABEL:lCP.*]]@PAGE
; REGULAR-NEXT: ldr q[[REGNUM:[0-9]+]], {{\[}}[[PAGEADDR]], [[CSTLABEL]]@PAGEOFF]
; REGULAR-NEXT: add.16b [[DESTV:v[0-9]+]], v0, v[[REGNUM]]
; REGULAR-NEXT: mul.16b v[[DESTREGNUM:[0-9]+]], [[DESTV]], v[[REGNUM]]
; REGULAR-NEXT: b [[LABELend:LBB.*]]
; Next BB
; REGULAR-NEXT: [[LABELelse]]
; REGULAR-NEXT: adrp [[PAGEADDR:x[0-9]+]], [[CSTLABEL:lCP.*]]@PAGE
; REGULAR-NEXT: ldr q[[DESTREGNUM]], {{\[}}[[PAGEADDR]], [[CSTLABEL]]@PAGEOFF]
; Next BB
; REGULAR-NEXT: [[LABELend]]:
; REGULAR-NEXT: mul.16b [[TMP1:v[0-9]+]], v[[DESTREGNUM]], v[[DESTREGNUM]]
; REGULAR-NEXT: mul.16b [[TMP2:v[0-9]+]], [[TMP1]], [[TMP1]]
; REGULAR-NEXT: mul.16b [[TMP3:v[0-9]+]], [[TMP2]], [[TMP2]]
; REGULAR-NEXT: mul.16b v0, [[TMP3]], [[TMP3]]
; REGULAR-NEXT: ret
entry:
%tobool = icmp eq i32 %path, 0
br i1 %tobool, label %if.end, label %if.then
if.then: ; preds = %entry
%add.i = add <16 x i8> %arg, <i8 -40, i8 -93, i8 -118, i8 -99, i8 -75, i8 -105, i8 74, i8 -110, i8 62, i8 -115, i8 -119, i8 -120, i8 34, i8 -124, i8 0, i8 -128>
%mul.i26 = mul <16 x i8> %add.i, <i8 -40, i8 -93, i8 -118, i8 -99, i8 -75, i8 -105, i8 74, i8 -110, i8 62, i8 -115, i8 -119, i8 -120, i8 34, i8 -124, i8 0, i8 -128>
br label %if.end
if.end: ; preds = %entry, %if.then
%ret.0 = phi <16 x i8> [ %mul.i26, %if.then ], [ <i8 -40, i8 -93, i8 -118, i8 -99, i8 -75, i8 -105, i8 74, i8 -110, i8 62, i8 -115, i8 -119, i8 -120, i8 34, i8 -124, i8 0, i8 -128>, %entry ]
%mul.i25 = mul <16 x i8> %ret.0, %ret.0
%mul.i24 = mul <16 x i8> %mul.i25, %mul.i25
%mul.i23 = mul <16 x i8> %mul.i24, %mul.i24
%mul.i = mul <16 x i8> %mul.i23, %mul.i23
ret <16 x i8> %mul.i
}
define void @accessBig(i64* %storage) {
; PROMOTED-LABEL: accessBig:
; PROMOTED: adrp
; PROMOTED: ret
%addr = bitcast i64* %storage to <1 x i80>*
store <1 x i80> <i80 483673642326615442599424>, <1 x i80>* %addr
ret void
}
define void @asmStatement() {
; PROMOTED-LABEL: asmStatement:
; PROMOTED-NOT: adrp
; PROMOTED: ret
call void asm sideeffect "bfxil w0, w0, $0, $1", "i,i"(i32 28, i32 4)
ret void
}