1 files changed, 203 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AVR/inline-asm/inline-asm.ll b/llvm/test/CodeGen/AVR/inline-asm/inline-asm.ll
new file mode 100644
index 00000000000..678395a3e5c
--- /dev/null
+++ b/llvm/test/CodeGen/AVR/inline-asm/inline-asm.ll
@@ -0,0 +1,203 @@
+; RUN: llc < %s -march=avr -mattr=movw | FileCheck %s
+
+; CHECK-LABEL: no_operands:
+define void @no_operands() {
+  ; CHECK: add {{r[0-9]+}}, {{r[0-9]+}}
+  call void asm sideeffect "add r24, r22", ""() nounwind
+  ret void
+}
+
+; CHECK-LABEL: input_operand:
+define void @input_operand(i8 %a) {
+  ; CHECK: add {{r[0-9]+}}, {{r[0-9]+}}
+  call void asm sideeffect "add $0, $0", "r"(i8 %a) nounwind
+  ret void
+}
+
+; CHECK-LABEL: simple_upper_regs:
+define void @simple_upper_regs(i8 %p0, i8 %p1, i8 %p2, i8 %p3,
+                               i8 %p4, i8 %p5, i8 %p6, i8 %p7) {
+  ; CHECK: some_instr {{r[0-9]+}}, {{r[0-9]+}}, {{r[0-9]+}}, {{r[0-9]+}}, {{r[0-9]+}}, {{r[0-9]+}}, {{r[0-9]+}}, {{r[0-9]+}}
+  call void asm sideeffect "some_instr $0, $1, $2, $3, $4, $5, $6, $7",
+                           "a,a,a,a,a,a,a,a" (i8 %p0, i8 %p1, i8 %p2, i8 %p3,
+                                              i8 %p4, i8 %p5, i8 %p6, i8 %p7) nounwind
+  ret void
+}
+
+; CHECK-LABEL: upper_regs:
+define void @upper_regs(i8 %p0) {
+  ; CHECK: some_instr {{r[0-9]+}}
+  call void asm sideeffect "some_instr $0", "d" (i8 %p0) nounwind
+  ret void
+}
+
+; CHECK-LABEL: lower_regs:
+define void @lower_regs(i8 %p0) {
+  ; CHECK: some_instr {{r[0-9]+}}
+  call void asm sideeffect "some_instr $0", "l" (i8 %p0) nounwind
+  ret void
+}
+
+; CHECK-LABEL: special_upper_regs:
+define void @special_upper_regs(i8 %p0, i8 %p1, i8 %p2, i8 %p3) {
+  ; CHECK: some_instr {{r[0-9]+}},{{r[0-9]+}},{{r[0-9]+}},{{r[0-9]+}}
+  call void asm sideeffect "some_instr $0,$1,$2,$3", "w,w,w,w" (i8 %p0, i8 %p1, i8 %p2, i8 %p3) nounwind
+  ret void
+}
+
+; CHECK-LABEL: xyz_reg:
+define void @xyz_reg(i16 %var) {
+  ; CHECK: some_instr {{r[0-9]+}}, {{r[0-9]+}}, {{r[0-9]+}}
+  call void asm sideeffect "some_instr $0, $1, $2", "x,y,z" (i16 %var, i16 %var, i16 %var) nounwind
+  ret void
+}
+
+;TODO
+; How to use SP reg properly in inline asm??
+; define void @sp_reg(i16 %var)
+
+; CHECK-LABEL: ptr_reg:
+define void @ptr_reg(i16 %var0, i16 %var1, i16 %var2) {
+  ; CHECK: some_instr {{r[0-9]+}}, {{r[0-9]+}}, {{r[0-9]+}}
+  call void asm sideeffect "some_instr $0, $1, $2", "e,e,e" (i16 %var0, i16 %var1, i16 %var2) nounwind
+  ret void
+}
+
+; CHECK-LABEL: base_ptr_reg:
+define void @base_ptr_reg(i16 %var0, i16 %var1) {
+  ; CHECK: some_instr r28, r30
+  call void asm sideeffect "some_instr $0, $1", "b,b" (i16 %var0, i16 %var1) nounwind
+  ret void
+}
+
+; CHECK-LABEL: input_output_operand:
+define i8 @input_output_operand(i8 %a, i8 %b) {
+  ; CHECK: add {{r[0-9]+}}, {{r[0-9]+}}
+  %1 = call i8 asm "add $0, $1", "=r,r"(i8 %a) nounwind
+  ret i8 %1
+}
+
+; CHECK-LABEL: temp_reg:
+define void @temp_reg(i8 %a) {
+  ; CHECK: some_instr {{r[0-9]+}}
+  call void asm sideeffect "some_instr $0", "t" (i8 %a) nounwind
+  ret void
+}
+
+; CHECK-LABEL: int_0_63:
+define void @int_0_63() {
+  ; CHECK: some_instr 5
+  call void asm sideeffect "some_instr $0", "I" (i8 5) nounwind
+  ret void
+}
+
+; CHECK-LABEL: int_minus63_0:
+define void @int_minus63_0() {
+  ; CHECK: some_instr -5
+  call void asm sideeffect "some_instr $0", "J" (i8 -5) nounwind
+  ret void
+}
+
+; CHECK-LABEL: int_2_2:
+define void @int_2_2() {
+  ; CHECK: some_instr 2
+  call void asm sideeffect "some_instr $0", "K" (i8 2) nounwind
+  ret void
+}
+
+; CHECK-LABEL: int_0_0:
+define void @int_0_0() {
+  ; CHECK: some_instr 0
+  call void asm sideeffect "some_instr $0", "L" (i8 0) nounwind
+  ret void
+}
+
+; CHECK-LABEL: int_0_255:
+define void @int_0_255() {
+  ; CHECK: some_instr 254
+  call void asm sideeffect "some_instr $0", "M" (i8 254) nounwind
+  ret void
+}
+
+; CHECK-LABEL: int_minus1_minus1:
+define void @int_minus1_minus1() {
+  ; CHECK: some_instr -1
+  call void asm sideeffect "some_instr $0", "N" (i8 -1) nounwind
+  ret void
+}
+
+; CHECK-LABEL: int_8_or_16_or_24:
+define void @int_8_or_16_or_24() {
+  ; CHECK: some_instr 8, 16, 24
+  call void asm sideeffect "some_instr $0, $1, $2", "O,O,O" (i8 8, i8 16, i8 24) nounwind
+  ret void
+}
+
+; CHECK-LABEL: int_1_1:
+define void @int_1_1() {
+  ; CHECK: some_instr 1
+  call void asm sideeffect "some_instr $0", "P" (i8 1) nounwind
+  ret void
+}
+
+; CHECK-LABEL: int_minus6_5:
+define void @int_minus6_5() {
+  ; CHECK: some_instr -6
+  call void asm sideeffect "some_instr $0", "R" (i8 -6) nounwind
+  ret void
+}
+
+; CHECK-LABEL: float_0_0:
+define void @float_0_0() {
+  ; CHECK: some_instr 0
+  call void asm sideeffect "some_instr $0", "G" (float 0.0) nounwind
+  ret void
+}
+
+
+; Memory constraint
+
+@a = internal global i16 0, align 4
+@b = internal global i16 0, align 4
+
+; CHECK-LABEL: mem_global:
+define void @mem_global() {
+  ; CHECK: some_instr {{X|Y|Z}}, {{X|Y|Z}}
+  call void asm "some_instr $0, $1", "=*Q,=*Q"(i16* @a, i16* @b)
+  ret void
+}
+
+; CHECK-LABEL: mem_params:
+define void @mem_params(i16* %a, i16* %b) {
+  ; CHECK: some_instr {{X|Y|Z}}, {{X|Y|Z}}
+  call void asm "some_instr $0, $1", "=*Q,=*Q"(i16* %a, i16* %b)
+  ret void
+}
+
+; CHECK-LABEL: mem_local:
+define void @mem_local() {
+  %a = alloca i16
+  %b = alloca i16
+  ; CHECK: some_instr {{X|Y|Z}}+3, {{X|Y|Z}}+1
+  call void asm "some_instr $0, $1", "=*Q,=*Q"(i16* %a, i16* %b)
+  ret void
+}
+
+; CHECK-LABEL: mem_mixed:
+define void @mem_mixed() {
+  %a = alloca i16
+  %b = alloca i16
+  ; CHECK: some_instr {{X|Y|Z}}, {{X|Y|Z}}+3, {{X|Y|Z}}+1
+  call void asm "some_instr $0, $1, $2", "=*Q,=*Q,=*Q"(i16* @a, i16* %a, i16* %b)
+  ret void
+}
+
+; CHECK-LABEL: mem_gep:
+define i8 @mem_gep(i8* %p) {
+entry:
+; CHECK: movw {{r[0-9]+}}, [[REG:r[0-9]+]]
+  %arrayidx = getelementptr inbounds i8, i8* %p, i16 1
+; CHECK: ld [[REG]], {{X|Y|Z}}+1
+  %0 = tail call i8 asm sideeffect "ld $0, $1\0A\09", "=r,*Q"(i8* %arrayidx)
+  ret i8 %0
+}