Subzero, MIPS32: lowerUnreachable

tests_lit/assembler/mips32/encoding_trap.ll

Index: tests_lit/assembler/mips32/encoding_trap.ll
diff --git a/tests_lit/assembler/mips32/encoding_trap.ll b/tests_lit/assembler/mips32/encoding_trap.ll
new file mode 100644
index 0000000000000000000000000000000000000000..a6a86e9e4b60edc1bbdce71792bb358b216c8b39
--- /dev/null
+++ b/tests_lit/assembler/mips32/encoding_trap.ll
@@ -0,0 +1,41 @@
+; Test encoding of MIPS32 floating point arithmetic instructions
+
+; REQUIRES: allow_dump
+
+; Compile using standalone assembler.
+; RUN: %p2i --filetype=asm -i %s --target=mips32 --args -O2 \
+; RUN:   --allow-externally-defined-symbols --skip-unimplemented \
+; RUN:   | FileCheck %s --check-prefix=ASM
+
+; Show bytes in assembled standalone code.
+; RUN: %p2i --filetype=asm -i %s --target=mips32 --assemble --disassemble \
+; RUN:   --args -O2 --allow-externally-defined-symbols --skip-unimplemented \
+; RUN:   | FileCheck %s --check-prefix=DIS
+
+; Compile using integrated assembler.
+; RUN: %p2i --filetype=iasm -i %s --target=mips32 --args -O2 \
+; RUN:   --allow-externally-defined-symbols --skip-unimplemented \
+; RUN:   | FileCheck %s --check-prefix=IASM
+
+; Show bytes in assembled integrated code.
+; RUN: %p2i --filetype=iasm -i %s --target=mips32 --assemble --disassemble \
+; RUN:   --args -O2 --allow-externally-defined-symbols --skip-unimplemented \
+; RUN:   | FileCheck %s --check-prefix=DIS
+
+define internal void @encTrap() {
+  unreachable
+}
+
+; ASM-LABEL: encTrap
+; ASM-NEXT: .LencTrap$__0:
+; ASM-NEXT: 	teq	$zero, $zero, 0
+
+; DIS-LABEL: 00000000 <encTrap>:
+; DIS-NEXT:    0:	00000034 	teq	zero,zero
+
+; IASM-LABEL: encTrap:
+; IASM-NEXT: .LencTrap$__0:
+; IASM-NEXT: 	.byte 0x34
+; IASM-NEXT: 	.byte 0x0
+; IASM-NEXT: 	.byte 0x0
+; IASM-NEXT: 	.byte 0x0