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llvm-mirror/test/CodeGen/AArch64/ldst-opt.ll
David Blaikie ab043ff680 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

llvm-svn: 230794
2015-02-27 21:17:42 +00:00

768 lines
25 KiB
LLVM

; RUN: llc -mtriple=aarch64-linux-gnu -aarch64-atomic-cfg-tidy=0 -verify-machineinstrs -o - %s | FileCheck %s
; This file contains tests for the AArch64 load/store optimizer.
%padding = type { i8*, i8*, i8*, i8* }
%s.word = type { i32, i32 }
%s.doubleword = type { i64, i32 }
%s.quadword = type { fp128, i32 }
%s.float = type { float, i32 }
%s.double = type { double, i32 }
%struct.word = type { %padding, %s.word }
%struct.doubleword = type { %padding, %s.doubleword }
%struct.quadword = type { %padding, %s.quadword }
%struct.float = type { %padding, %s.float }
%struct.double = type { %padding, %s.double }
; Check the following transform:
;
; (ldr|str) X, [x0, #32]
; ...
; add x0, x0, #32
; ->
; (ldr|str) X, [x0, #32]!
;
; with X being either w1, x1, s0, d0 or q0.
declare void @bar_word(%s.word*, i32)
define void @load-pre-indexed-word(%struct.word* %ptr) nounwind {
; CHECK-LABEL: load-pre-indexed-word
; CHECK: ldr w{{[0-9]+}}, [x{{[0-9]+}}, #32]!
entry:
%a = getelementptr inbounds %struct.word, %struct.word* %ptr, i64 0, i32 1, i32 0
%add = load i32, i32* %a, align 4
br label %bar
bar:
%c = getelementptr inbounds %struct.word, %struct.word* %ptr, i64 0, i32 1
tail call void @bar_word(%s.word* %c, i32 %add)
ret void
}
define void @store-pre-indexed-word(%struct.word* %ptr, i32 %val) nounwind {
; CHECK-LABEL: store-pre-indexed-word
; CHECK: str w{{[0-9]+}}, [x{{[0-9]+}}, #32]!
entry:
%a = getelementptr inbounds %struct.word, %struct.word* %ptr, i64 0, i32 1, i32 0
store i32 %val, i32* %a, align 4
br label %bar
bar:
%c = getelementptr inbounds %struct.word, %struct.word* %ptr, i64 0, i32 1
tail call void @bar_word(%s.word* %c, i32 %val)
ret void
}
declare void @bar_doubleword(%s.doubleword*, i64)
define void @load-pre-indexed-doubleword(%struct.doubleword* %ptr) nounwind {
; CHECK-LABEL: load-pre-indexed-doubleword
; CHECK: ldr x{{[0-9]+}}, [x{{[0-9]+}}, #32]!
entry:
%a = getelementptr inbounds %struct.doubleword, %struct.doubleword* %ptr, i64 0, i32 1, i32 0
%add = load i64, i64* %a, align 4
br label %bar
bar:
%c = getelementptr inbounds %struct.doubleword, %struct.doubleword* %ptr, i64 0, i32 1
tail call void @bar_doubleword(%s.doubleword* %c, i64 %add)
ret void
}
define void @store-pre-indexed-doubleword(%struct.doubleword* %ptr, i64 %val) nounwind {
; CHECK-LABEL: store-pre-indexed-doubleword
; CHECK: str x{{[0-9]+}}, [x{{[0-9]+}}, #32]!
entry:
%a = getelementptr inbounds %struct.doubleword, %struct.doubleword* %ptr, i64 0, i32 1, i32 0
store i64 %val, i64* %a, align 4
br label %bar
bar:
%c = getelementptr inbounds %struct.doubleword, %struct.doubleword* %ptr, i64 0, i32 1
tail call void @bar_doubleword(%s.doubleword* %c, i64 %val)
ret void
}
declare void @bar_quadword(%s.quadword*, fp128)
define void @load-pre-indexed-quadword(%struct.quadword* %ptr) nounwind {
; CHECK-LABEL: load-pre-indexed-quadword
; CHECK: ldr q{{[0-9]+}}, [x{{[0-9]+}}, #32]!
entry:
%a = getelementptr inbounds %struct.quadword, %struct.quadword* %ptr, i64 0, i32 1, i32 0
%add = load fp128, fp128* %a, align 4
br label %bar
bar:
%c = getelementptr inbounds %struct.quadword, %struct.quadword* %ptr, i64 0, i32 1
tail call void @bar_quadword(%s.quadword* %c, fp128 %add)
ret void
}
define void @store-pre-indexed-quadword(%struct.quadword* %ptr, fp128 %val) nounwind {
; CHECK-LABEL: store-pre-indexed-quadword
; CHECK: str q{{[0-9]+}}, [x{{[0-9]+}}, #32]!
entry:
%a = getelementptr inbounds %struct.quadword, %struct.quadword* %ptr, i64 0, i32 1, i32 0
store fp128 %val, fp128* %a, align 4
br label %bar
bar:
%c = getelementptr inbounds %struct.quadword, %struct.quadword* %ptr, i64 0, i32 1
tail call void @bar_quadword(%s.quadword* %c, fp128 %val)
ret void
}
declare void @bar_float(%s.float*, float)
define void @load-pre-indexed-float(%struct.float* %ptr) nounwind {
; CHECK-LABEL: load-pre-indexed-float
; CHECK: ldr s{{[0-9]+}}, [x{{[0-9]+}}, #32]!
entry:
%a = getelementptr inbounds %struct.float, %struct.float* %ptr, i64 0, i32 1, i32 0
%add = load float, float* %a, align 4
br label %bar
bar:
%c = getelementptr inbounds %struct.float, %struct.float* %ptr, i64 0, i32 1
tail call void @bar_float(%s.float* %c, float %add)
ret void
}
define void @store-pre-indexed-float(%struct.float* %ptr, float %val) nounwind {
; CHECK-LABEL: store-pre-indexed-float
; CHECK: str s{{[0-9]+}}, [x{{[0-9]+}}, #32]!
entry:
%a = getelementptr inbounds %struct.float, %struct.float* %ptr, i64 0, i32 1, i32 0
store float %val, float* %a, align 4
br label %bar
bar:
%c = getelementptr inbounds %struct.float, %struct.float* %ptr, i64 0, i32 1
tail call void @bar_float(%s.float* %c, float %val)
ret void
}
declare void @bar_double(%s.double*, double)
define void @load-pre-indexed-double(%struct.double* %ptr) nounwind {
; CHECK-LABEL: load-pre-indexed-double
; CHECK: ldr d{{[0-9]+}}, [x{{[0-9]+}}, #32]!
entry:
%a = getelementptr inbounds %struct.double, %struct.double* %ptr, i64 0, i32 1, i32 0
%add = load double, double* %a, align 4
br label %bar
bar:
%c = getelementptr inbounds %struct.double, %struct.double* %ptr, i64 0, i32 1
tail call void @bar_double(%s.double* %c, double %add)
ret void
}
define void @store-pre-indexed-double(%struct.double* %ptr, double %val) nounwind {
; CHECK-LABEL: store-pre-indexed-double
; CHECK: str d{{[0-9]+}}, [x{{[0-9]+}}, #32]!
entry:
%a = getelementptr inbounds %struct.double, %struct.double* %ptr, i64 0, i32 1, i32 0
store double %val, double* %a, align 4
br label %bar
bar:
%c = getelementptr inbounds %struct.double, %struct.double* %ptr, i64 0, i32 1
tail call void @bar_double(%s.double* %c, double %val)
ret void
}
; Check the following transform:
;
; add x8, x8, #16
; ...
; ldr X, [x8]
; ->
; ldr X, [x8, #16]!
;
; with X being either w0, x0, s0, d0 or q0.
%pre.struct.i32 = type { i32, i32, i32}
%pre.struct.i64 = type { i32, i64, i64}
%pre.struct.i128 = type { i32, <2 x i64>, <2 x i64>}
%pre.struct.float = type { i32, float, float}
%pre.struct.double = type { i32, double, double}
define i32 @load-pre-indexed-word2(%pre.struct.i32** %this, i1 %cond,
%pre.struct.i32* %load2) nounwind {
; CHECK-LABEL: load-pre-indexed-word2
; CHECK: ldr w{{[0-9]+}}, [x{{[0-9]+}}, #4]!
br i1 %cond, label %if.then, label %if.end
if.then:
%load1 = load %pre.struct.i32*, %pre.struct.i32** %this
%gep1 = getelementptr inbounds %pre.struct.i32, %pre.struct.i32* %load1, i64 0, i32 1
br label %return
if.end:
%gep2 = getelementptr inbounds %pre.struct.i32, %pre.struct.i32* %load2, i64 0, i32 2
br label %return
return:
%retptr = phi i32* [ %gep1, %if.then ], [ %gep2, %if.end ]
%ret = load i32, i32* %retptr
ret i32 %ret
}
define i64 @load-pre-indexed-doubleword2(%pre.struct.i64** %this, i1 %cond,
%pre.struct.i64* %load2) nounwind {
; CHECK-LABEL: load-pre-indexed-doubleword2
; CHECK: ldr x{{[0-9]+}}, [x{{[0-9]+}}, #8]!
br i1 %cond, label %if.then, label %if.end
if.then:
%load1 = load %pre.struct.i64*, %pre.struct.i64** %this
%gep1 = getelementptr inbounds %pre.struct.i64, %pre.struct.i64* %load1, i64 0, i32 1
br label %return
if.end:
%gep2 = getelementptr inbounds %pre.struct.i64, %pre.struct.i64* %load2, i64 0, i32 2
br label %return
return:
%retptr = phi i64* [ %gep1, %if.then ], [ %gep2, %if.end ]
%ret = load i64, i64* %retptr
ret i64 %ret
}
define <2 x i64> @load-pre-indexed-quadword2(%pre.struct.i128** %this, i1 %cond,
%pre.struct.i128* %load2) nounwind {
; CHECK-LABEL: load-pre-indexed-quadword2
; CHECK: ldr q{{[0-9]+}}, [x{{[0-9]+}}, #16]!
br i1 %cond, label %if.then, label %if.end
if.then:
%load1 = load %pre.struct.i128*, %pre.struct.i128** %this
%gep1 = getelementptr inbounds %pre.struct.i128, %pre.struct.i128* %load1, i64 0, i32 1
br label %return
if.end:
%gep2 = getelementptr inbounds %pre.struct.i128, %pre.struct.i128* %load2, i64 0, i32 2
br label %return
return:
%retptr = phi <2 x i64>* [ %gep1, %if.then ], [ %gep2, %if.end ]
%ret = load <2 x i64>, <2 x i64>* %retptr
ret <2 x i64> %ret
}
define float @load-pre-indexed-float2(%pre.struct.float** %this, i1 %cond,
%pre.struct.float* %load2) nounwind {
; CHECK-LABEL: load-pre-indexed-float2
; CHECK: ldr s{{[0-9]+}}, [x{{[0-9]+}}, #4]!
br i1 %cond, label %if.then, label %if.end
if.then:
%load1 = load %pre.struct.float*, %pre.struct.float** %this
%gep1 = getelementptr inbounds %pre.struct.float, %pre.struct.float* %load1, i64 0, i32 1
br label %return
if.end:
%gep2 = getelementptr inbounds %pre.struct.float, %pre.struct.float* %load2, i64 0, i32 2
br label %return
return:
%retptr = phi float* [ %gep1, %if.then ], [ %gep2, %if.end ]
%ret = load float, float* %retptr
ret float %ret
}
define double @load-pre-indexed-double2(%pre.struct.double** %this, i1 %cond,
%pre.struct.double* %load2) nounwind {
; CHECK-LABEL: load-pre-indexed-double2
; CHECK: ldr d{{[0-9]+}}, [x{{[0-9]+}}, #8]!
br i1 %cond, label %if.then, label %if.end
if.then:
%load1 = load %pre.struct.double*, %pre.struct.double** %this
%gep1 = getelementptr inbounds %pre.struct.double, %pre.struct.double* %load1, i64 0, i32 1
br label %return
if.end:
%gep2 = getelementptr inbounds %pre.struct.double, %pre.struct.double* %load2, i64 0, i32 2
br label %return
return:
%retptr = phi double* [ %gep1, %if.then ], [ %gep2, %if.end ]
%ret = load double, double* %retptr
ret double %ret
}
; Check the following transform:
;
; add x8, x8, #16
; ...
; str X, [x8]
; ->
; str X, [x8, #16]!
;
; with X being either w0, x0, s0, d0 or q0.
define void @store-pre-indexed-word2(%pre.struct.i32** %this, i1 %cond,
%pre.struct.i32* %load2,
i32 %val) nounwind {
; CHECK-LABEL: store-pre-indexed-word2
; CHECK: str w{{[0-9]+}}, [x{{[0-9]+}}, #4]!
br i1 %cond, label %if.then, label %if.end
if.then:
%load1 = load %pre.struct.i32*, %pre.struct.i32** %this
%gep1 = getelementptr inbounds %pre.struct.i32, %pre.struct.i32* %load1, i64 0, i32 1
br label %return
if.end:
%gep2 = getelementptr inbounds %pre.struct.i32, %pre.struct.i32* %load2, i64 0, i32 2
br label %return
return:
%retptr = phi i32* [ %gep1, %if.then ], [ %gep2, %if.end ]
store i32 %val, i32* %retptr
ret void
}
define void @store-pre-indexed-doubleword2(%pre.struct.i64** %this, i1 %cond,
%pre.struct.i64* %load2,
i64 %val) nounwind {
; CHECK-LABEL: store-pre-indexed-doubleword2
; CHECK: str x{{[0-9]+}}, [x{{[0-9]+}}, #8]!
br i1 %cond, label %if.then, label %if.end
if.then:
%load1 = load %pre.struct.i64*, %pre.struct.i64** %this
%gep1 = getelementptr inbounds %pre.struct.i64, %pre.struct.i64* %load1, i64 0, i32 1
br label %return
if.end:
%gep2 = getelementptr inbounds %pre.struct.i64, %pre.struct.i64* %load2, i64 0, i32 2
br label %return
return:
%retptr = phi i64* [ %gep1, %if.then ], [ %gep2, %if.end ]
store i64 %val, i64* %retptr
ret void
}
define void @store-pre-indexed-quadword2(%pre.struct.i128** %this, i1 %cond,
%pre.struct.i128* %load2,
<2 x i64> %val) nounwind {
; CHECK-LABEL: store-pre-indexed-quadword2
; CHECK: str q{{[0-9]+}}, [x{{[0-9]+}}, #16]!
br i1 %cond, label %if.then, label %if.end
if.then:
%load1 = load %pre.struct.i128*, %pre.struct.i128** %this
%gep1 = getelementptr inbounds %pre.struct.i128, %pre.struct.i128* %load1, i64 0, i32 1
br label %return
if.end:
%gep2 = getelementptr inbounds %pre.struct.i128, %pre.struct.i128* %load2, i64 0, i32 2
br label %return
return:
%retptr = phi <2 x i64>* [ %gep1, %if.then ], [ %gep2, %if.end ]
store <2 x i64> %val, <2 x i64>* %retptr
ret void
}
define void @store-pre-indexed-float2(%pre.struct.float** %this, i1 %cond,
%pre.struct.float* %load2,
float %val) nounwind {
; CHECK-LABEL: store-pre-indexed-float2
; CHECK: str s{{[0-9]+}}, [x{{[0-9]+}}, #4]!
br i1 %cond, label %if.then, label %if.end
if.then:
%load1 = load %pre.struct.float*, %pre.struct.float** %this
%gep1 = getelementptr inbounds %pre.struct.float, %pre.struct.float* %load1, i64 0, i32 1
br label %return
if.end:
%gep2 = getelementptr inbounds %pre.struct.float, %pre.struct.float* %load2, i64 0, i32 2
br label %return
return:
%retptr = phi float* [ %gep1, %if.then ], [ %gep2, %if.end ]
store float %val, float* %retptr
ret void
}
define void @store-pre-indexed-double2(%pre.struct.double** %this, i1 %cond,
%pre.struct.double* %load2,
double %val) nounwind {
; CHECK-LABEL: store-pre-indexed-double2
; CHECK: str d{{[0-9]+}}, [x{{[0-9]+}}, #8]!
br i1 %cond, label %if.then, label %if.end
if.then:
%load1 = load %pre.struct.double*, %pre.struct.double** %this
%gep1 = getelementptr inbounds %pre.struct.double, %pre.struct.double* %load1, i64 0, i32 1
br label %return
if.end:
%gep2 = getelementptr inbounds %pre.struct.double, %pre.struct.double* %load2, i64 0, i32 2
br label %return
return:
%retptr = phi double* [ %gep1, %if.then ], [ %gep2, %if.end ]
store double %val, double* %retptr
ret void
}
; Check the following transform:
;
; ldr X, [x20]
; ...
; add x20, x20, #32
; ->
; ldr X, [x20], #32
;
; with X being either w0, x0, s0, d0 or q0.
define void @load-post-indexed-word(i32* %array, i64 %count) nounwind {
; CHECK-LABEL: load-post-indexed-word
; CHECK: ldr w{{[0-9]+}}, [x{{[0-9]+}}], #16
entry:
%gep1 = getelementptr i32, i32* %array, i64 2
br label %body
body:
%iv2 = phi i32* [ %gep3, %body ], [ %gep1, %entry ]
%iv = phi i64 [ %iv.next, %body ], [ %count, %entry ]
%gep2 = getelementptr i32, i32* %iv2, i64 -1
%load = load i32, i32* %gep2
call void @use-word(i32 %load)
%load2 = load i32, i32* %iv2
call void @use-word(i32 %load2)
%iv.next = add i64 %iv, -4
%gep3 = getelementptr i32, i32* %iv2, i64 4
%cond = icmp eq i64 %iv.next, 0
br i1 %cond, label %exit, label %body
exit:
ret void
}
define void @load-post-indexed-doubleword(i64* %array, i64 %count) nounwind {
; CHECK-LABEL: load-post-indexed-doubleword
; CHECK: ldr x{{[0-9]+}}, [x{{[0-9]+}}], #32
entry:
%gep1 = getelementptr i64, i64* %array, i64 2
br label %body
body:
%iv2 = phi i64* [ %gep3, %body ], [ %gep1, %entry ]
%iv = phi i64 [ %iv.next, %body ], [ %count, %entry ]
%gep2 = getelementptr i64, i64* %iv2, i64 -1
%load = load i64, i64* %gep2
call void @use-doubleword(i64 %load)
%load2 = load i64, i64* %iv2
call void @use-doubleword(i64 %load2)
%iv.next = add i64 %iv, -4
%gep3 = getelementptr i64, i64* %iv2, i64 4
%cond = icmp eq i64 %iv.next, 0
br i1 %cond, label %exit, label %body
exit:
ret void
}
define void @load-post-indexed-quadword(<2 x i64>* %array, i64 %count) nounwind {
; CHECK-LABEL: load-post-indexed-quadword
; CHECK: ldr q{{[0-9]+}}, [x{{[0-9]+}}], #64
entry:
%gep1 = getelementptr <2 x i64>, <2 x i64>* %array, i64 2
br label %body
body:
%iv2 = phi <2 x i64>* [ %gep3, %body ], [ %gep1, %entry ]
%iv = phi i64 [ %iv.next, %body ], [ %count, %entry ]
%gep2 = getelementptr <2 x i64>, <2 x i64>* %iv2, i64 -1
%load = load <2 x i64>, <2 x i64>* %gep2
call void @use-quadword(<2 x i64> %load)
%load2 = load <2 x i64>, <2 x i64>* %iv2
call void @use-quadword(<2 x i64> %load2)
%iv.next = add i64 %iv, -4
%gep3 = getelementptr <2 x i64>, <2 x i64>* %iv2, i64 4
%cond = icmp eq i64 %iv.next, 0
br i1 %cond, label %exit, label %body
exit:
ret void
}
define void @load-post-indexed-float(float* %array, i64 %count) nounwind {
; CHECK-LABEL: load-post-indexed-float
; CHECK: ldr s{{[0-9]+}}, [x{{[0-9]+}}], #16
entry:
%gep1 = getelementptr float, float* %array, i64 2
br label %body
body:
%iv2 = phi float* [ %gep3, %body ], [ %gep1, %entry ]
%iv = phi i64 [ %iv.next, %body ], [ %count, %entry ]
%gep2 = getelementptr float, float* %iv2, i64 -1
%load = load float, float* %gep2
call void @use-float(float %load)
%load2 = load float, float* %iv2
call void @use-float(float %load2)
%iv.next = add i64 %iv, -4
%gep3 = getelementptr float, float* %iv2, i64 4
%cond = icmp eq i64 %iv.next, 0
br i1 %cond, label %exit, label %body
exit:
ret void
}
define void @load-post-indexed-double(double* %array, i64 %count) nounwind {
; CHECK-LABEL: load-post-indexed-double
; CHECK: ldr d{{[0-9]+}}, [x{{[0-9]+}}], #32
entry:
%gep1 = getelementptr double, double* %array, i64 2
br label %body
body:
%iv2 = phi double* [ %gep3, %body ], [ %gep1, %entry ]
%iv = phi i64 [ %iv.next, %body ], [ %count, %entry ]
%gep2 = getelementptr double, double* %iv2, i64 -1
%load = load double, double* %gep2
call void @use-double(double %load)
%load2 = load double, double* %iv2
call void @use-double(double %load2)
%iv.next = add i64 %iv, -4
%gep3 = getelementptr double, double* %iv2, i64 4
%cond = icmp eq i64 %iv.next, 0
br i1 %cond, label %exit, label %body
exit:
ret void
}
; Check the following transform:
;
; str X, [x20]
; ...
; add x20, x20, #32
; ->
; str X, [x20], #32
;
; with X being either w0, x0, s0, d0 or q0.
define void @store-post-indexed-word(i32* %array, i64 %count, i32 %val) nounwind {
; CHECK-LABEL: store-post-indexed-word
; CHECK: str w{{[0-9]+}}, [x{{[0-9]+}}], #16
entry:
%gep1 = getelementptr i32, i32* %array, i64 2
br label %body
body:
%iv2 = phi i32* [ %gep3, %body ], [ %gep1, %entry ]
%iv = phi i64 [ %iv.next, %body ], [ %count, %entry ]
%gep2 = getelementptr i32, i32* %iv2, i64 -1
%load = load i32, i32* %gep2
call void @use-word(i32 %load)
store i32 %val, i32* %iv2
%iv.next = add i64 %iv, -4
%gep3 = getelementptr i32, i32* %iv2, i64 4
%cond = icmp eq i64 %iv.next, 0
br i1 %cond, label %exit, label %body
exit:
ret void
}
define void @store-post-indexed-doubleword(i64* %array, i64 %count, i64 %val) nounwind {
; CHECK-LABEL: store-post-indexed-doubleword
; CHECK: str x{{[0-9]+}}, [x{{[0-9]+}}], #32
entry:
%gep1 = getelementptr i64, i64* %array, i64 2
br label %body
body:
%iv2 = phi i64* [ %gep3, %body ], [ %gep1, %entry ]
%iv = phi i64 [ %iv.next, %body ], [ %count, %entry ]
%gep2 = getelementptr i64, i64* %iv2, i64 -1
%load = load i64, i64* %gep2
call void @use-doubleword(i64 %load)
store i64 %val, i64* %iv2
%iv.next = add i64 %iv, -4
%gep3 = getelementptr i64, i64* %iv2, i64 4
%cond = icmp eq i64 %iv.next, 0
br i1 %cond, label %exit, label %body
exit:
ret void
}
define void @store-post-indexed-quadword(<2 x i64>* %array, i64 %count, <2 x i64> %val) nounwind {
; CHECK-LABEL: store-post-indexed-quadword
; CHECK: str q{{[0-9]+}}, [x{{[0-9]+}}], #64
entry:
%gep1 = getelementptr <2 x i64>, <2 x i64>* %array, i64 2
br label %body
body:
%iv2 = phi <2 x i64>* [ %gep3, %body ], [ %gep1, %entry ]
%iv = phi i64 [ %iv.next, %body ], [ %count, %entry ]
%gep2 = getelementptr <2 x i64>, <2 x i64>* %iv2, i64 -1
%load = load <2 x i64>, <2 x i64>* %gep2
call void @use-quadword(<2 x i64> %load)
store <2 x i64> %val, <2 x i64>* %iv2
%iv.next = add i64 %iv, -4
%gep3 = getelementptr <2 x i64>, <2 x i64>* %iv2, i64 4
%cond = icmp eq i64 %iv.next, 0
br i1 %cond, label %exit, label %body
exit:
ret void
}
define void @store-post-indexed-float(float* %array, i64 %count, float %val) nounwind {
; CHECK-LABEL: store-post-indexed-float
; CHECK: str s{{[0-9]+}}, [x{{[0-9]+}}], #16
entry:
%gep1 = getelementptr float, float* %array, i64 2
br label %body
body:
%iv2 = phi float* [ %gep3, %body ], [ %gep1, %entry ]
%iv = phi i64 [ %iv.next, %body ], [ %count, %entry ]
%gep2 = getelementptr float, float* %iv2, i64 -1
%load = load float, float* %gep2
call void @use-float(float %load)
store float %val, float* %iv2
%iv.next = add i64 %iv, -4
%gep3 = getelementptr float, float* %iv2, i64 4
%cond = icmp eq i64 %iv.next, 0
br i1 %cond, label %exit, label %body
exit:
ret void
}
define void @store-post-indexed-double(double* %array, i64 %count, double %val) nounwind {
; CHECK-LABEL: store-post-indexed-double
; CHECK: str d{{[0-9]+}}, [x{{[0-9]+}}], #32
entry:
%gep1 = getelementptr double, double* %array, i64 2
br label %body
body:
%iv2 = phi double* [ %gep3, %body ], [ %gep1, %entry ]
%iv = phi i64 [ %iv.next, %body ], [ %count, %entry ]
%gep2 = getelementptr double, double* %iv2, i64 -1
%load = load double, double* %gep2
call void @use-double(double %load)
store double %val, double* %iv2
%iv.next = add i64 %iv, -4
%gep3 = getelementptr double, double* %iv2, i64 4
%cond = icmp eq i64 %iv.next, 0
br i1 %cond, label %exit, label %body
exit:
ret void
}
declare void @use-word(i32)
declare void @use-doubleword(i64)
declare void @use-quadword(<2 x i64>)
declare void @use-float(float)
declare void @use-double(double)
; Check the following transform:
;
; (ldr|str) X, [x20]
; ...
; sub x20, x20, #16
; ->
; (ldr|str) X, [x20], #-16
;
; with X being either w0, x0, s0, d0 or q0.
define void @post-indexed-sub-word(i32* %a, i32* %b, i64 %count) nounwind {
; CHECK-LABEL: post-indexed-sub-word
; CHECK: ldr w{{[0-9]+}}, [x{{[0-9]+}}], #-8
; CHECK: str w{{[0-9]+}}, [x{{[0-9]+}}], #-8
br label %for.body
for.body:
%phi1 = phi i32* [ %gep4, %for.body ], [ %b, %0 ]
%phi2 = phi i32* [ %gep3, %for.body ], [ %a, %0 ]
%i = phi i64 [ %dec.i, %for.body], [ %count, %0 ]
%gep1 = getelementptr i32, i32* %phi1, i64 -1
%load1 = load i32, i32* %gep1
%gep2 = getelementptr i32, i32* %phi2, i64 -1
store i32 %load1, i32* %gep2
%load2 = load i32, i32* %phi1
store i32 %load2, i32* %phi2
%dec.i = add nsw i64 %i, -1
%gep3 = getelementptr i32, i32* %phi2, i64 -2
%gep4 = getelementptr i32, i32* %phi1, i64 -2
%cond = icmp sgt i64 %dec.i, 0
br i1 %cond, label %for.body, label %end
end:
ret void
}
define void @post-indexed-sub-doubleword(i64* %a, i64* %b, i64 %count) nounwind {
; CHECK-LABEL: post-indexed-sub-doubleword
; CHECK: ldr x{{[0-9]+}}, [x{{[0-9]+}}], #-16
; CHECK: str x{{[0-9]+}}, [x{{[0-9]+}}], #-16
br label %for.body
for.body:
%phi1 = phi i64* [ %gep4, %for.body ], [ %b, %0 ]
%phi2 = phi i64* [ %gep3, %for.body ], [ %a, %0 ]
%i = phi i64 [ %dec.i, %for.body], [ %count, %0 ]
%gep1 = getelementptr i64, i64* %phi1, i64 -1
%load1 = load i64, i64* %gep1
%gep2 = getelementptr i64, i64* %phi2, i64 -1
store i64 %load1, i64* %gep2
%load2 = load i64, i64* %phi1
store i64 %load2, i64* %phi2
%dec.i = add nsw i64 %i, -1
%gep3 = getelementptr i64, i64* %phi2, i64 -2
%gep4 = getelementptr i64, i64* %phi1, i64 -2
%cond = icmp sgt i64 %dec.i, 0
br i1 %cond, label %for.body, label %end
end:
ret void
}
define void @post-indexed-sub-quadword(<2 x i64>* %a, <2 x i64>* %b, i64 %count) nounwind {
; CHECK-LABEL: post-indexed-sub-quadword
; CHECK: ldr q{{[0-9]+}}, [x{{[0-9]+}}], #-32
; CHECK: str q{{[0-9]+}}, [x{{[0-9]+}}], #-32
br label %for.body
for.body:
%phi1 = phi <2 x i64>* [ %gep4, %for.body ], [ %b, %0 ]
%phi2 = phi <2 x i64>* [ %gep3, %for.body ], [ %a, %0 ]
%i = phi i64 [ %dec.i, %for.body], [ %count, %0 ]
%gep1 = getelementptr <2 x i64>, <2 x i64>* %phi1, i64 -1
%load1 = load <2 x i64>, <2 x i64>* %gep1
%gep2 = getelementptr <2 x i64>, <2 x i64>* %phi2, i64 -1
store <2 x i64> %load1, <2 x i64>* %gep2
%load2 = load <2 x i64>, <2 x i64>* %phi1
store <2 x i64> %load2, <2 x i64>* %phi2
%dec.i = add nsw i64 %i, -1
%gep3 = getelementptr <2 x i64>, <2 x i64>* %phi2, i64 -2
%gep4 = getelementptr <2 x i64>, <2 x i64>* %phi1, i64 -2
%cond = icmp sgt i64 %dec.i, 0
br i1 %cond, label %for.body, label %end
end:
ret void
}
define void @post-indexed-sub-float(float* %a, float* %b, i64 %count) nounwind {
; CHECK-LABEL: post-indexed-sub-float
; CHECK: ldr s{{[0-9]+}}, [x{{[0-9]+}}], #-8
; CHECK: str s{{[0-9]+}}, [x{{[0-9]+}}], #-8
br label %for.body
for.body:
%phi1 = phi float* [ %gep4, %for.body ], [ %b, %0 ]
%phi2 = phi float* [ %gep3, %for.body ], [ %a, %0 ]
%i = phi i64 [ %dec.i, %for.body], [ %count, %0 ]
%gep1 = getelementptr float, float* %phi1, i64 -1
%load1 = load float, float* %gep1
%gep2 = getelementptr float, float* %phi2, i64 -1
store float %load1, float* %gep2
%load2 = load float, float* %phi1
store float %load2, float* %phi2
%dec.i = add nsw i64 %i, -1
%gep3 = getelementptr float, float* %phi2, i64 -2
%gep4 = getelementptr float, float* %phi1, i64 -2
%cond = icmp sgt i64 %dec.i, 0
br i1 %cond, label %for.body, label %end
end:
ret void
}
define void @post-indexed-sub-double(double* %a, double* %b, i64 %count) nounwind {
; CHECK-LABEL: post-indexed-sub-double
; CHECK: ldr d{{[0-9]+}}, [x{{[0-9]+}}], #-16
; CHECK: str d{{[0-9]+}}, [x{{[0-9]+}}], #-16
br label %for.body
for.body:
%phi1 = phi double* [ %gep4, %for.body ], [ %b, %0 ]
%phi2 = phi double* [ %gep3, %for.body ], [ %a, %0 ]
%i = phi i64 [ %dec.i, %for.body], [ %count, %0 ]
%gep1 = getelementptr double, double* %phi1, i64 -1
%load1 = load double, double* %gep1
%gep2 = getelementptr double, double* %phi2, i64 -1
store double %load1, double* %gep2
%load2 = load double, double* %phi1
store double %load2, double* %phi2
%dec.i = add nsw i64 %i, -1
%gep3 = getelementptr double, double* %phi2, i64 -2
%gep4 = getelementptr double, double* %phi1, i64 -2
%cond = icmp sgt i64 %dec.i, 0
br i1 %cond, label %for.body, label %end
end:
ret void
}