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llvm-mirror/test/CodeGen/AArch64/arm64-ldp.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

150 lines
4.5 KiB
LLVM

; RUN: llc < %s -march=arm64 -verify-machineinstrs | FileCheck %s
; RUN: llc < %s -march=arm64 -aarch64-unscaled-mem-op=true\
; RUN: -verify-machineinstrs | FileCheck -check-prefix=LDUR_CHK %s
; CHECK: ldp_int
; CHECK: ldp
define i32 @ldp_int(i32* %p) nounwind {
%tmp = load i32* %p, align 4
%add.ptr = getelementptr inbounds i32* %p, i64 1
%tmp1 = load i32* %add.ptr, align 4
%add = add nsw i32 %tmp1, %tmp
ret i32 %add
}
; CHECK: ldp_long
; CHECK: ldp
define i64 @ldp_long(i64* %p) nounwind {
%tmp = load i64* %p, align 8
%add.ptr = getelementptr inbounds i64* %p, i64 1
%tmp1 = load i64* %add.ptr, align 8
%add = add nsw i64 %tmp1, %tmp
ret i64 %add
}
; CHECK: ldp_float
; CHECK: ldp
define float @ldp_float(float* %p) nounwind {
%tmp = load float* %p, align 4
%add.ptr = getelementptr inbounds float* %p, i64 1
%tmp1 = load float* %add.ptr, align 4
%add = fadd float %tmp, %tmp1
ret float %add
}
; CHECK: ldp_double
; CHECK: ldp
define double @ldp_double(double* %p) nounwind {
%tmp = load double* %p, align 8
%add.ptr = getelementptr inbounds double* %p, i64 1
%tmp1 = load double* %add.ptr, align 8
%add = fadd double %tmp, %tmp1
ret double %add
}
; Test the load/store optimizer---combine ldurs into a ldp, if appropriate
define i32 @ldur_int(i32* %a) nounwind {
; LDUR_CHK: ldur_int
; LDUR_CHK: ldp [[DST1:w[0-9]+]], [[DST2:w[0-9]+]], [x0, #-8]
; LDUR_CHK-NEXT: add w{{[0-9]+}}, [[DST2]], [[DST1]]
; LDUR_CHK-NEXT: ret
%p1 = getelementptr inbounds i32* %a, i32 -1
%tmp1 = load i32* %p1, align 2
%p2 = getelementptr inbounds i32* %a, i32 -2
%tmp2 = load i32* %p2, align 2
%tmp3 = add i32 %tmp1, %tmp2
ret i32 %tmp3
}
define i64 @ldur_long(i64* %a) nounwind ssp {
; LDUR_CHK: ldur_long
; LDUR_CHK: ldp [[DST1:x[0-9]+]], [[DST2:x[0-9]+]], [x0, #-16]
; LDUR_CHK-NEXT: add x{{[0-9]+}}, [[DST2]], [[DST1]]
; LDUR_CHK-NEXT: ret
%p1 = getelementptr inbounds i64* %a, i64 -1
%tmp1 = load i64* %p1, align 2
%p2 = getelementptr inbounds i64* %a, i64 -2
%tmp2 = load i64* %p2, align 2
%tmp3 = add i64 %tmp1, %tmp2
ret i64 %tmp3
}
define float @ldur_float(float* %a) {
; LDUR_CHK: ldur_float
; LDUR_CHK: ldp [[DST1:s[0-9]+]], [[DST2:s[0-9]+]], [x0, #-8]
; LDUR_CHK-NEXT: add s{{[0-9]+}}, [[DST2]], [[DST1]]
; LDUR_CHK-NEXT: ret
%p1 = getelementptr inbounds float* %a, i64 -1
%tmp1 = load float* %p1, align 2
%p2 = getelementptr inbounds float* %a, i64 -2
%tmp2 = load float* %p2, align 2
%tmp3 = fadd float %tmp1, %tmp2
ret float %tmp3
}
define double @ldur_double(double* %a) {
; LDUR_CHK: ldur_double
; LDUR_CHK: ldp [[DST1:d[0-9]+]], [[DST2:d[0-9]+]], [x0, #-16]
; LDUR_CHK-NEXT: add d{{[0-9]+}}, [[DST2]], [[DST1]]
; LDUR_CHK-NEXT: ret
%p1 = getelementptr inbounds double* %a, i64 -1
%tmp1 = load double* %p1, align 2
%p2 = getelementptr inbounds double* %a, i64 -2
%tmp2 = load double* %p2, align 2
%tmp3 = fadd double %tmp1, %tmp2
ret double %tmp3
}
; Now check some boundary conditions
define i64 @pairUpBarelyIn(i64* %a) nounwind ssp {
; LDUR_CHK: pairUpBarelyIn
; LDUR_CHK-NOT: ldur
; LDUR_CHK: ldp [[DST1:x[0-9]+]], [[DST2:x[0-9]+]], [x0, #-256]
; LDUR_CHK-NEXT: add x{{[0-9]+}}, [[DST2]], [[DST1]]
; LDUR_CHK-NEXT: ret
%p1 = getelementptr inbounds i64* %a, i64 -31
%tmp1 = load i64* %p1, align 2
%p2 = getelementptr inbounds i64* %a, i64 -32
%tmp2 = load i64* %p2, align 2
%tmp3 = add i64 %tmp1, %tmp2
ret i64 %tmp3
}
define i64 @pairUpBarelyOut(i64* %a) nounwind ssp {
; LDUR_CHK: pairUpBarelyOut
; LDUR_CHK-NOT: ldp
; Don't be fragile about which loads or manipulations of the base register
; are used---just check that there isn't an ldp before the add
; LDUR_CHK: add
; LDUR_CHK-NEXT: ret
%p1 = getelementptr inbounds i64* %a, i64 -32
%tmp1 = load i64* %p1, align 2
%p2 = getelementptr inbounds i64* %a, i64 -33
%tmp2 = load i64* %p2, align 2
%tmp3 = add i64 %tmp1, %tmp2
ret i64 %tmp3
}
define i64 @pairUpNotAligned(i64* %a) nounwind ssp {
; LDUR_CHK: pairUpNotAligned
; LDUR_CHK-NOT: ldp
; LDUR_CHK: ldur
; LDUR_CHK-NEXT: ldur
; LDUR_CHK-NEXT: add
; LDUR_CHK-NEXT: ret
%p1 = getelementptr inbounds i64* %a, i64 -18
%bp1 = bitcast i64* %p1 to i8*
%bp1p1 = getelementptr inbounds i8* %bp1, i64 1
%dp1 = bitcast i8* %bp1p1 to i64*
%tmp1 = load i64* %dp1, align 1
%p2 = getelementptr inbounds i64* %a, i64 -17
%bp2 = bitcast i64* %p2 to i8*
%bp2p1 = getelementptr inbounds i8* %bp2, i64 1
%dp2 = bitcast i8* %bp2p1 to i64*
%tmp2 = load i64* %dp2, align 1
%tmp3 = add i64 %tmp1, %tmp2
ret i64 %tmp3
}