File: callee-saved.ll

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llvm-toolchain-14 1%3A14.0.6-12
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; RUN: llc < %s | FileCheck %s

target datalayout = "e-m:e-p:16:16-i32:16-i64:16-f32:16-f64:16-a:8-n8:16-S16"
target triple = "msp430-generic-generic"

; Test the r4-r10 callee-saved registers (MSP430 EABI p. 3.2.2).

@g = global float 0.0

define void @foo() {
; CHECK-LABEL: foo:
; CHECK-NOT: push	r15
; CHECK-NOT: push	r14
; CHECK-NOT: push	r13
; CHECK-NOT: push	r12
; CHECK-NOT: push	r11
; CHECK: push	r10
; CHECK: push	r9
; CHECK: push	r8
; CHECK: push	r7
; CHECK: push	r6
; CHECK: push	r5
; CHECK: push	r4
  %t1 = load volatile float, float* @g
  %t2 = load volatile float, float* @g
  %t3 = load volatile float, float* @g
  %t4 = load volatile float, float* @g
  %t5 = load volatile float, float* @g
  %t6 = load volatile float, float* @g
  %t7 = load volatile float, float* @g
  store volatile float %t1, float* @g
  store volatile float %t2, float* @g
  store volatile float %t3, float* @g
  store volatile float %t4, float* @g
  store volatile float %t5, float* @g
  store volatile float %t6, float* @g
  ret void
}