mirror of
https://github.com/pkivolowitz/asm_book.git
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171 lines
5.4 KiB
ArmAsm
171 lines
5.4 KiB
ArmAsm
.arch armv8-a
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.file "cast.c"
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// GNU C17 (Ubuntu 9.3.0-17ubuntu1~20.04) version 9.3.0 (aarch64-linux-gnu)
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// compiled by GNU C version 9.3.0, GMP version 6.2.0, MPFR version 4.0.2, MPC version 1.1.0, isl version isl-0.22.1-GMP
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// GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
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// options passed: -imultiarch aarch64-linux-gnu cast.c -mlittle-endian
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// -mabi=lp64 -Wall -fverbose-asm -fasynchronous-unwind-tables
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// -fstack-protector-strong -Wformat-security -fstack-clash-protection
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// options enabled: -fPIC -fPIE -faggressive-loop-optimizations
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// -fassume-phsa -fasynchronous-unwind-tables -fauto-inc-dec -fcommon
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// -fdelete-null-pointer-checks -fdwarf2-cfi-asm -fearly-inlining
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// -feliminate-unused-debug-types -ffp-int-builtin-inexact -ffunction-cse
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// -fgcse-lm -fgnu-runtime -fgnu-unique -fident -finline-atomics
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// -fipa-stack-alignment -fira-hoist-pressure -fira-share-save-slots
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// -fira-share-spill-slots -fivopts -fkeep-static-consts
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// -fleading-underscore -flifetime-dse -flto-odr-type-merging -fmath-errno
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// -fmerge-debug-strings -fomit-frame-pointer -fpeephole -fplt
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// -fprefetch-loop-arrays -freg-struct-return
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// -fsched-critical-path-heuristic -fsched-dep-count-heuristic
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// -fsched-group-heuristic -fsched-interblock -fsched-last-insn-heuristic
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// -fsched-rank-heuristic -fsched-spec -fsched-spec-insn-heuristic
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// -fsched-stalled-insns-dep -fschedule-fusion -fsemantic-interposition
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// -fshow-column -fshrink-wrap-separate -fsigned-zeros
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// -fsplit-ivs-in-unroller -fssa-backprop -fstack-clash-protection
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// -fstack-protector-strong -fstdarg-opt -fstrict-volatile-bitfields
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// -fsync-libcalls -ftrapping-math -ftree-cselim -ftree-forwprop
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// -ftree-loop-if-convert -ftree-loop-im -ftree-loop-ivcanon
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// -ftree-loop-optimize -ftree-parallelize-loops= -ftree-phiprop
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// -ftree-reassoc -ftree-scev-cprop -funit-at-a-time -funwind-tables
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// -fverbose-asm -fzero-initialized-in-bss -mfix-cortex-a53-835769
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// -mfix-cortex-a53-843419 -mglibc -mlittle-endian
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// -momit-leaf-frame-pointer -mpc-relative-literal-loads
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.text
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.align 2
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.global Foo
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.type Foo, %function
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Foo:
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.LFB0:
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.cfi_startproc
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sub sp, sp, #16 //,,
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.cfi_def_cfa_offset 16
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// cast.c:5: unsigned char c = 1;
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mov w0, 1 // tmp93,
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strb w0, [sp, 1] // tmp93, c
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// cast.c:6: unsigned short s = 2;
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mov w0, 2 // tmp94,
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strh w0, [sp, 2] // tmp94, s
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// cast.c:7: unsigned int i = 4;
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mov w0, 4 // tmp95,
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str w0, [sp, 4] // tmp95, i
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// cast.c:8: unsigned long l = 8;
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mov x0, 8 // tmp96,
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str x0, [sp, 8] // tmp96, l
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// cast.c:10: s += (unsigned short) c;
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ldrb w0, [sp, 1] // tmp97, c
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and w0, w0, 65535 // _1, tmp97
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ldrh w1, [sp, 2] // tmp98, s
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add w0, w0, w1 // tmp99, _1, tmp100
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strh w0, [sp, 2] // tmp101, s
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// cast.c:11: i += (unsigned int) s;
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ldrh w0, [sp, 2] // _2, s
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// cast.c:11: i += (unsigned int) s;
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ldr w1, [sp, 4] // tmp103, i
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add w0, w1, w0 // tmp102, tmp103, _2
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str w0, [sp, 4] // tmp102, i
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// cast.c:12: l += (unsigned long) i;
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ldr w0, [sp, 4] // _3, i
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// cast.c:12: l += (unsigned long) i;
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ldr x1, [sp, 8] // tmp105, l
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add x0, x1, x0 // tmp104, tmp105, _3
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str x0, [sp, 8] // tmp104, l
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// cast.c:13: }
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nop
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add sp, sp, 16 //,,
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.cfi_def_cfa_offset 0
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ret
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.cfi_endproc
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.LFE0:
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.size Foo, .-Foo
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.align 2
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.global Bar
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.type Bar, %function
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Bar:
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.LFB1:
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.cfi_startproc
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sub sp, sp, #16 //,,
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.cfi_def_cfa_offset 16
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// cast.c:17: int i = 4;
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mov w0, 4 // tmp91,
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str w0, [sp, 4] // tmp91, i
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// cast.c:18: long l = 8;
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mov x0, 8 // tmp92,
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str x0, [sp, 8] // tmp92, l
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// cast.c:20: i += (int) l;
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ldr x0, [sp, 8] // tmp93, l
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mov w1, w0 // _1, tmp93
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// cast.c:20: i += (int) l;
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ldr w0, [sp, 4] // tmp95, i
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add w0, w0, w1 // tmp94, tmp95, _1
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str w0, [sp, 4] // tmp94, i
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// cast.c:21: }
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nop
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add sp, sp, 16 //,,
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.cfi_def_cfa_offset 0
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ret
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.cfi_endproc
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.LFE1:
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.size Bar, .-Bar
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.align 2
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.global main
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.type main, %function
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main:
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.LFB2:
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.cfi_startproc
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sub sp, sp, #16 //,,
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.cfi_def_cfa_offset 16
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// cast.c:25: char c = 1;
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mov w0, 1 // tmp99,
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strb w0, [sp, 1] // tmp99, c
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// cast.c:26: short s = 2;
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mov w0, 2 // tmp100,
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strh w0, [sp, 2] // tmp100, s
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// cast.c:27: int i = 4;
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mov w0, 4 // tmp101,
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str w0, [sp, 4] // tmp101, i
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// cast.c:28: long l = 8;
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mov x0, 8 // tmp102,
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str x0, [sp, 8] // tmp102, l
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// cast.c:30: s += (short) c;
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ldrb w0, [sp, 1] // tmp103, c
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and w1, w0, 65535 // _1, tmp103
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ldrh w0, [sp, 2] // s.0_2, s
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add w0, w1, w0 // tmp104, _1, s.0_2
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and w0, w0, 65535 // _3, tmp104
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strh w0, [sp, 2] // tmp105, s
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// cast.c:31: i += (int) s;
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ldrsh w0, [sp, 2] // _4, s
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// cast.c:31: i += (int) s;
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ldr w1, [sp, 4] // tmp107, i
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add w0, w1, w0 // tmp106, tmp107, _4
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str w0, [sp, 4] // tmp106, i
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// cast.c:32: l += (long) i;
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ldrsw x0, [sp, 4] // _5, i
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// cast.c:32: l += (long) i;
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ldr x1, [sp, 8] // tmp109, l
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add x0, x1, x0 // tmp108, tmp109, _5
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str x0, [sp, 8] // tmp108, l
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// cast.c:33: l += c;
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ldrb w0, [sp, 1] // _6, c
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ldr x1, [sp, 8] // tmp111, l
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add x0, x1, x0 // tmp110, tmp111, _6
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str x0, [sp, 8] // tmp110, l
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// cast.c:34: c += l;
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ldr x0, [sp, 8] // tmp112, l
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and w0, w0, 255 // _7, tmp112
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ldrb w1, [sp, 1] // tmp113, c
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add w0, w0, w1 // tmp114, _7, tmp115
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strb w0, [sp, 1] // tmp116, c
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// cast.c:35: return 0;
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mov w0, 0 // _17,
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// cast.c:36: }
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add sp, sp, 16 //,,
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.cfi_def_cfa_offset 0
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ret
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.cfi_endproc
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.LFE2:
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.size main, .-main
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.ident "GCC: (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0"
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.section .note.GNU-stack,"",@progbits
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