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Diffstat (limited to 'test/CodeGen/AVR/software-mul.ll')
| -rw-r--r-- | test/CodeGen/AVR/software-mul.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/CodeGen/AVR/software-mul.ll b/test/CodeGen/AVR/software-mul.ll new file mode 100644 index 0000000000000..9a4d28127eb87 --- /dev/null +++ b/test/CodeGen/AVR/software-mul.ll @@ -0,0 +1,28 @@ +; RUN: llc -mattr=avr6,-mul < %s -march=avr | FileCheck %s +; RUN: llc -mcpu=attiny85 < %s -march=avr | FileCheck %s +; RUN: llc -mcpu=ata5272 < %s -march=avr | FileCheck %s +; RUN: llc -mcpu=attiny861a < %s -march=avr | FileCheck %s +; RUN: llc -mcpu=at90usb82 < %s -march=avr | FileCheck %s + +; Tests lowering of multiplication to compiler support routines. + +; CHECK-LABEL: mul8: +define i8 @mul8(i8 %a, i8 %b) { +; CHECK: mov r25, r24 +; CHECK: mov r24, r22 +; CHECK: mov r22, r25 +; CHECK: call __mulqi3 + %mul = mul i8 %b, %a + ret i8 %mul +} + +; CHECK-LABEL: mul16: +define i16 @mul16(i16 %a, i16 %b) { +; CHECK: movw r18, r24 +; CHECK: movw r24, r22 +; CHECK: movw r22, r18 +; CHECK: call __mulhi3 + %mul = mul nsw i16 %b, %a + ret i16 %mul +} + |