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llvm-project/clang/test/CodeGen/asm_arm.c

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david conrad points out that {|} in inline assembly on arm are not asm variants. This fixes neon inline asm which my patch for PR6780 broke. llvm-svn: 102181
2010-04-24 00:29:58 +08:00
// RUN: %clang_cc1 -triple armv6-unknown-unknown -emit-llvm -o - %s | FileCheck %s
Add ARM register names and aliases. - Patch by Shantonu Sen! <rdar://problem/6922650> clang doesn't know about ARM registers for inline asm clobber lists llvm-svn: 82132
2009-09-17 15:03:19 +08:00
void test0(void) {
asm volatile("mov r0, r0" :: );
}
void test1(void) {
asm volatile("mov r0, r0" :::
"cc", "memory" );
}
void test2(void) {
asm volatile("mov r0, r0" :::
"r0", "r1", "r2", "r3");
asm volatile("mov r0, r0" :::
"r4", "r5", "r6", "r8");
}
void test3(void) {
asm volatile("mov r0, r0" :::
"a1", "a2", "a3", "a4");
asm volatile("mov r0, r0" :::
"v1", "v2", "v3", "v5");
}
david conrad points out that {|} in inline assembly on arm are not asm variants. This fixes neon inline asm which my patch for PR6780 broke. llvm-svn: 102181
2010-04-24 00:29:58 +08:00
// {} should not be treated as asm variants.
void test4(float *a, float *b) {
// CHECK: @test4
// CHECK: call void asm sideeffect "vld1.32 {d8[],d9[]},
__asm__ volatile (
"vld1.32 {d8[],d9[]}, [%1,:32] \n\t"
"vst1.32 {q4}, [%0,:128] \n\t"
:: "r"(a), "r"(b));
}
ARM: Swap which registers we consider real / aliases to match LLVM and llvm-gcc. llvm-svn: 110774
2010-08-11 10:17:11 +08:00
// {sp, lr, pc} are the canonical names for {r13, r14, r15}.
//
// CHECK: @test5
// CHECK: call void asm sideeffect "", "~{sp},~{lr},~{pc},~{sp},~{lr},~{pc}"()
void test5() {
__asm__("" : : : "r13", "r14", "r15", "sp", "lr", "pc");
}
ARM: Recognize single precision float register names. - We don't recognize double or NEON register names yet -- we don't have the infrastructure to generate the right clobbers for them. llvm-svn: 110775
2010-08-11 10:17:20 +08:00
// CHECK: @test6
// CHECK: call void asm sideeffect "", "
// CHECK: ~{s0},~{s1},~{s2},~{s3},~{s4},~{s5},~{s6},~{s7},
// CHECK: ~{s8},~{s9},~{s10},~{s11},~{s12},~{s13},~{s14},~{s15},
// CHECK: ~{s16},~{s17},~{s18},~{s19},~{s20},~{s21},~{s22},~{s23},
// CHECK: ~{s24},~{s25},~{s26},~{s27},~{s28},~{s29},~{s30},~{s31}"()
void test6() {
__asm__("" : : :
"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7",
"s8", "s9", "s10", "s11", "s12", "s13", "s14", "s15",
"s16", "s17", "s18", "s19", "s20", "s21", "s22", "s23",
"s24", "s25", "s26", "s27", "s28", "s29", "s30", "s31");
}