|  | ; RUN: llc < %s -march=arm64 -aarch64-redzone | FileCheck %s | 
|  |  | 
|  | define void @store64(i64** nocapture %out, i64 %index, i64 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: store64: | 
|  | ; CHECK: str x{{[0-9+]}}, [x{{[0-9+]}}], #8 | 
|  | ; CHECK: ret | 
|  | %tmp = load i64** %out, align 8 | 
|  | %incdec.ptr = getelementptr inbounds i64* %tmp, i64 1 | 
|  | store i64 %spacing, i64* %tmp, align 4 | 
|  | store i64* %incdec.ptr, i64** %out, align 8 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define void @store32(i32** nocapture %out, i32 %index, i32 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: store32: | 
|  | ; CHECK: str w{{[0-9+]}}, [x{{[0-9+]}}], #4 | 
|  | ; CHECK: ret | 
|  | %tmp = load i32** %out, align 8 | 
|  | %incdec.ptr = getelementptr inbounds i32* %tmp, i64 1 | 
|  | store i32 %spacing, i32* %tmp, align 4 | 
|  | store i32* %incdec.ptr, i32** %out, align 8 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define void @store16(i16** nocapture %out, i16 %index, i16 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: store16: | 
|  | ; CHECK: strh w{{[0-9+]}}, [x{{[0-9+]}}], #2 | 
|  | ; CHECK: ret | 
|  | %tmp = load i16** %out, align 8 | 
|  | %incdec.ptr = getelementptr inbounds i16* %tmp, i64 1 | 
|  | store i16 %spacing, i16* %tmp, align 4 | 
|  | store i16* %incdec.ptr, i16** %out, align 8 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define void @store8(i8** nocapture %out, i8 %index, i8 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: store8: | 
|  | ; CHECK: strb w{{[0-9+]}}, [x{{[0-9+]}}], #1 | 
|  | ; CHECK: ret | 
|  | %tmp = load i8** %out, align 8 | 
|  | %incdec.ptr = getelementptr inbounds i8* %tmp, i64 1 | 
|  | store i8 %spacing, i8* %tmp, align 4 | 
|  | store i8* %incdec.ptr, i8** %out, align 8 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define void @truncst64to32(i32** nocapture %out, i32 %index, i64 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: truncst64to32: | 
|  | ; CHECK: str w{{[0-9+]}}, [x{{[0-9+]}}], #4 | 
|  | ; CHECK: ret | 
|  | %tmp = load i32** %out, align 8 | 
|  | %incdec.ptr = getelementptr inbounds i32* %tmp, i64 1 | 
|  | %trunc = trunc i64 %spacing to i32 | 
|  | store i32 %trunc, i32* %tmp, align 4 | 
|  | store i32* %incdec.ptr, i32** %out, align 8 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define void @truncst64to16(i16** nocapture %out, i16 %index, i64 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: truncst64to16: | 
|  | ; CHECK: strh w{{[0-9+]}}, [x{{[0-9+]}}], #2 | 
|  | ; CHECK: ret | 
|  | %tmp = load i16** %out, align 8 | 
|  | %incdec.ptr = getelementptr inbounds i16* %tmp, i64 1 | 
|  | %trunc = trunc i64 %spacing to i16 | 
|  | store i16 %trunc, i16* %tmp, align 4 | 
|  | store i16* %incdec.ptr, i16** %out, align 8 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define void @truncst64to8(i8** nocapture %out, i8 %index, i64 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: truncst64to8: | 
|  | ; CHECK: strb w{{[0-9+]}}, [x{{[0-9+]}}], #1 | 
|  | ; CHECK: ret | 
|  | %tmp = load i8** %out, align 8 | 
|  | %incdec.ptr = getelementptr inbounds i8* %tmp, i64 1 | 
|  | %trunc = trunc i64 %spacing to i8 | 
|  | store i8 %trunc, i8* %tmp, align 4 | 
|  | store i8* %incdec.ptr, i8** %out, align 8 | 
|  | ret void | 
|  | } | 
|  |  | 
|  |  | 
|  | define void @storef32(float** nocapture %out, float %index, float %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: storef32: | 
|  | ; CHECK: str s{{[0-9+]}}, [x{{[0-9+]}}], #4 | 
|  | ; CHECK: ret | 
|  | %tmp = load float** %out, align 8 | 
|  | %incdec.ptr = getelementptr inbounds float* %tmp, i64 1 | 
|  | store float %spacing, float* %tmp, align 4 | 
|  | store float* %incdec.ptr, float** %out, align 8 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define void @storef64(double** nocapture %out, double %index, double %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: storef64: | 
|  | ; CHECK: str d{{[0-9+]}}, [x{{[0-9+]}}], #8 | 
|  | ; CHECK: ret | 
|  | %tmp = load double** %out, align 8 | 
|  | %incdec.ptr = getelementptr inbounds double* %tmp, i64 1 | 
|  | store double %spacing, double* %tmp, align 4 | 
|  | store double* %incdec.ptr, double** %out, align 8 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define double * @pref64(double** nocapture %out, double %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: pref64: | 
|  | ; CHECK: ldr     x0, [x0] | 
|  | ; CHECK-NEXT: str     d0, [x0, #32]! | 
|  | ; CHECK-NEXT: ret | 
|  | %tmp = load double** %out, align 8 | 
|  | %ptr = getelementptr inbounds double* %tmp, i64 4 | 
|  | store double %spacing, double* %ptr, align 4 | 
|  | ret double *%ptr | 
|  | } | 
|  |  | 
|  | define float * @pref32(float** nocapture %out, float %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: pref32: | 
|  | ; CHECK: ldr     x0, [x0] | 
|  | ; CHECK-NEXT: str     s0, [x0, #12]! | 
|  | ; CHECK-NEXT: ret | 
|  | %tmp = load float** %out, align 8 | 
|  | %ptr = getelementptr inbounds float* %tmp, i64 3 | 
|  | store float %spacing, float* %ptr, align 4 | 
|  | ret float *%ptr | 
|  | } | 
|  |  | 
|  | define i64 * @pre64(i64** nocapture %out, i64 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: pre64: | 
|  | ; CHECK: ldr     x0, [x0] | 
|  | ; CHECK-NEXT: str     x1, [x0, #16]! | 
|  | ; CHECK-NEXT: ret | 
|  | %tmp = load i64** %out, align 8 | 
|  | %ptr = getelementptr inbounds i64* %tmp, i64 2 | 
|  | store i64 %spacing, i64* %ptr, align 4 | 
|  | ret i64 *%ptr | 
|  | } | 
|  |  | 
|  | define i32 * @pre32(i32** nocapture %out, i32 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: pre32: | 
|  | ; CHECK: ldr     x0, [x0] | 
|  | ; CHECK-NEXT: str     w1, [x0, #8]! | 
|  | ; CHECK-NEXT: ret | 
|  | %tmp = load i32** %out, align 8 | 
|  | %ptr = getelementptr inbounds i32* %tmp, i64 2 | 
|  | store i32 %spacing, i32* %ptr, align 4 | 
|  | ret i32 *%ptr | 
|  | } | 
|  |  | 
|  | define i16 * @pre16(i16** nocapture %out, i16 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: pre16: | 
|  | ; CHECK: ldr     x0, [x0] | 
|  | ; CHECK-NEXT: strh    w1, [x0, #4]! | 
|  | ; CHECK-NEXT: ret | 
|  | %tmp = load i16** %out, align 8 | 
|  | %ptr = getelementptr inbounds i16* %tmp, i64 2 | 
|  | store i16 %spacing, i16* %ptr, align 4 | 
|  | ret i16 *%ptr | 
|  | } | 
|  |  | 
|  | define i8 * @pre8(i8** nocapture %out, i8 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: pre8: | 
|  | ; CHECK: ldr     x0, [x0] | 
|  | ; CHECK-NEXT: strb    w1, [x0, #2]! | 
|  | ; CHECK-NEXT: ret | 
|  | %tmp = load i8** %out, align 8 | 
|  | %ptr = getelementptr inbounds i8* %tmp, i64 2 | 
|  | store i8 %spacing, i8* %ptr, align 4 | 
|  | ret i8 *%ptr | 
|  | } | 
|  |  | 
|  | define i32 * @pretrunc64to32(i32** nocapture %out, i64 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: pretrunc64to32: | 
|  | ; CHECK: ldr     x0, [x0] | 
|  | ; CHECK-NEXT: str     w1, [x0, #8]! | 
|  | ; CHECK-NEXT: ret | 
|  | %tmp = load i32** %out, align 8 | 
|  | %ptr = getelementptr inbounds i32* %tmp, i64 2 | 
|  | %trunc = trunc i64 %spacing to i32 | 
|  | store i32 %trunc, i32* %ptr, align 4 | 
|  | ret i32 *%ptr | 
|  | } | 
|  |  | 
|  | define i16 * @pretrunc64to16(i16** nocapture %out, i64 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: pretrunc64to16: | 
|  | ; CHECK: ldr     x0, [x0] | 
|  | ; CHECK-NEXT: strh    w1, [x0, #4]! | 
|  | ; CHECK-NEXT: ret | 
|  | %tmp = load i16** %out, align 8 | 
|  | %ptr = getelementptr inbounds i16* %tmp, i64 2 | 
|  | %trunc = trunc i64 %spacing to i16 | 
|  | store i16 %trunc, i16* %ptr, align 4 | 
|  | ret i16 *%ptr | 
|  | } | 
|  |  | 
|  | define i8 * @pretrunc64to8(i8** nocapture %out, i64 %spacing) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: pretrunc64to8: | 
|  | ; CHECK: ldr     x0, [x0] | 
|  | ; CHECK-NEXT: strb    w1, [x0, #2]! | 
|  | ; CHECK-NEXT: ret | 
|  | %tmp = load i8** %out, align 8 | 
|  | %ptr = getelementptr inbounds i8* %tmp, i64 2 | 
|  | %trunc = trunc i64 %spacing to i8 | 
|  | store i8 %trunc, i8* %ptr, align 4 | 
|  | ret i8 *%ptr | 
|  | } | 
|  |  | 
|  | ;----- | 
|  | ; Pre-indexed loads | 
|  | ;----- | 
|  | define double* @preidxf64(double* %src, double* %out) { | 
|  | ; CHECK-LABEL: preidxf64: | 
|  | ; CHECK: ldr     d0, [x0, #8]! | 
|  | ; CHECK: str     d0, [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds double* %src, i64 1 | 
|  | %tmp = load double* %ptr, align 4 | 
|  | store double %tmp, double* %out, align 4 | 
|  | ret double* %ptr | 
|  | } | 
|  |  | 
|  | define float* @preidxf32(float* %src, float* %out) { | 
|  | ; CHECK-LABEL: preidxf32: | 
|  | ; CHECK: ldr     s0, [x0, #4]! | 
|  | ; CHECK: str     s0, [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds float* %src, i64 1 | 
|  | %tmp = load float* %ptr, align 4 | 
|  | store float %tmp, float* %out, align 4 | 
|  | ret float* %ptr | 
|  | } | 
|  |  | 
|  | define i64* @preidx64(i64* %src, i64* %out) { | 
|  | ; CHECK-LABEL: preidx64: | 
|  | ; CHECK: ldr     x[[REG:[0-9]+]], [x0, #8]! | 
|  | ; CHECK: str     x[[REG]], [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds i64* %src, i64 1 | 
|  | %tmp = load i64* %ptr, align 4 | 
|  | store i64 %tmp, i64* %out, align 4 | 
|  | ret i64* %ptr | 
|  | } | 
|  |  | 
|  | define i32* @preidx32(i32* %src, i32* %out) { | 
|  | ; CHECK: ldr     w[[REG:[0-9]+]], [x0, #4]! | 
|  | ; CHECK: str     w[[REG]], [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds i32* %src, i64 1 | 
|  | %tmp = load i32* %ptr, align 4 | 
|  | store i32 %tmp, i32* %out, align 4 | 
|  | ret i32* %ptr | 
|  | } | 
|  |  | 
|  | define i16* @preidx16zext32(i16* %src, i32* %out) { | 
|  | ; CHECK: ldrh    w[[REG:[0-9]+]], [x0, #2]! | 
|  | ; CHECK: str     w[[REG]], [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds i16* %src, i64 1 | 
|  | %tmp = load i16* %ptr, align 4 | 
|  | %ext = zext i16 %tmp to i32 | 
|  | store i32 %ext, i32* %out, align 4 | 
|  | ret i16* %ptr | 
|  | } | 
|  |  | 
|  | define i16* @preidx16zext64(i16* %src, i64* %out) { | 
|  | ; CHECK: ldrh    w[[REG:[0-9]+]], [x0, #2]! | 
|  | ; CHECK: str     x[[REG]], [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds i16* %src, i64 1 | 
|  | %tmp = load i16* %ptr, align 4 | 
|  | %ext = zext i16 %tmp to i64 | 
|  | store i64 %ext, i64* %out, align 4 | 
|  | ret i16* %ptr | 
|  | } | 
|  |  | 
|  | define i8* @preidx8zext32(i8* %src, i32* %out) { | 
|  | ; CHECK: ldrb    w[[REG:[0-9]+]], [x0, #1]! | 
|  | ; CHECK: str     w[[REG]], [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds i8* %src, i64 1 | 
|  | %tmp = load i8* %ptr, align 4 | 
|  | %ext = zext i8 %tmp to i32 | 
|  | store i32 %ext, i32* %out, align 4 | 
|  | ret i8* %ptr | 
|  | } | 
|  |  | 
|  | define i8* @preidx8zext64(i8* %src, i64* %out) { | 
|  | ; CHECK: ldrb    w[[REG:[0-9]+]], [x0, #1]! | 
|  | ; CHECK: str     x[[REG]], [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds i8* %src, i64 1 | 
|  | %tmp = load i8* %ptr, align 4 | 
|  | %ext = zext i8 %tmp to i64 | 
|  | store i64 %ext, i64* %out, align 4 | 
|  | ret i8* %ptr | 
|  | } | 
|  |  | 
|  | define i32* @preidx32sext64(i32* %src, i64* %out) { | 
|  | ; CHECK: ldrsw   x[[REG:[0-9]+]], [x0, #4]! | 
|  | ; CHECK: str     x[[REG]], [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds i32* %src, i64 1 | 
|  | %tmp = load i32* %ptr, align 4 | 
|  | %ext = sext i32 %tmp to i64 | 
|  | store i64 %ext, i64* %out, align 8 | 
|  | ret i32* %ptr | 
|  | } | 
|  |  | 
|  | define i16* @preidx16sext32(i16* %src, i32* %out) { | 
|  | ; CHECK: ldrsh   w[[REG:[0-9]+]], [x0, #2]! | 
|  | ; CHECK: str     w[[REG]], [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds i16* %src, i64 1 | 
|  | %tmp = load i16* %ptr, align 4 | 
|  | %ext = sext i16 %tmp to i32 | 
|  | store i32 %ext, i32* %out, align 4 | 
|  | ret i16* %ptr | 
|  | } | 
|  |  | 
|  | define i16* @preidx16sext64(i16* %src, i64* %out) { | 
|  | ; CHECK: ldrsh   x[[REG:[0-9]+]], [x0, #2]! | 
|  | ; CHECK: str     x[[REG]], [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds i16* %src, i64 1 | 
|  | %tmp = load i16* %ptr, align 4 | 
|  | %ext = sext i16 %tmp to i64 | 
|  | store i64 %ext, i64* %out, align 4 | 
|  | ret i16* %ptr | 
|  | } | 
|  |  | 
|  | define i8* @preidx8sext32(i8* %src, i32* %out) { | 
|  | ; CHECK: ldrsb   w[[REG:[0-9]+]], [x0, #1]! | 
|  | ; CHECK: str     w[[REG]], [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds i8* %src, i64 1 | 
|  | %tmp = load i8* %ptr, align 4 | 
|  | %ext = sext i8 %tmp to i32 | 
|  | store i32 %ext, i32* %out, align 4 | 
|  | ret i8* %ptr | 
|  | } | 
|  |  | 
|  | define i8* @preidx8sext64(i8* %src, i64* %out) { | 
|  | ; CHECK: ldrsb   x[[REG:[0-9]+]], [x0, #1]! | 
|  | ; CHECK: str     x[[REG]], [x1] | 
|  | ; CHECK: ret | 
|  | %ptr = getelementptr inbounds i8* %src, i64 1 | 
|  | %tmp = load i8* %ptr, align 4 | 
|  | %ext = sext i8 %tmp to i64 | 
|  | store i64 %ext, i64* %out, align 4 | 
|  | ret i8* %ptr | 
|  | } | 
|  |  | 
|  | ; This test checks if illegal post-index is generated | 
|  |  | 
|  | define i64* @postidx_clobber(i64* %addr) nounwind noinline ssp { | 
|  | ; CHECK-LABEL: postidx_clobber: | 
|  | ; CHECK-NOT: str     x0, [x0], #8 | 
|  | ; ret | 
|  | %paddr = bitcast i64* %addr to i64** | 
|  | store i64* %addr, i64** %paddr | 
|  | %newaddr = getelementptr i64* %addr, i32 1 | 
|  | ret i64* %newaddr | 
|  | } |