| ; RUN: llc < %s -mtriple=s390x-linux-gnu -O3 -mcpu=z10 | FileCheck %s |
| ; RUN: llc < %s -mtriple=s390x-linux-gnu -O3 -mcpu=z14 | FileCheck %s |
| ; |
| ; Test folding of spilled immediate loads and compares. |
| |
| define i32 @fun0(i32 *%src, i32 %arg) nounwind { |
| ; CHECK-LABEL: fun0: |
| ; CHECK: mvhi 164(%r15), 0 # 4-byte Folded Spill |
| ; CHECK: mvc 164(4,%r15), 0(%r2) # 4-byte Folded Spill |
| ; CHECK-LABEL: .LBB0_2: |
| ; CHECK: chsi 164(%r15), 2 # 4-byte Folded Reload |
| |
| entry: |
| %cmp = icmp eq i32 %arg, 0 |
| br i1 %cmp, label %cond, label %exit |
| |
| cond: |
| %val0 = load i32, i32 *%src |
| call void asm sideeffect "", "~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() nounwind |
| br label %exit |
| |
| exit: |
| %tmp0 = phi i32 [0, %entry], [%val0, %cond] |
| call void asm sideeffect "", "~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() nounwind |
| %cmp0 = icmp ne i32 %tmp0, 2 |
| %zxt0 = zext i1 %cmp0 to i32 |
| %and0 = and i32 %arg, %zxt0 |
| |
| ret i32 %and0 |
| } |
| |
| define i64 @fun1(i64 *%src, i64 %arg) nounwind { |
| ; CHECK-LABEL: fun1: |
| ; CHECK: mvghi 168(%r15), 0 # 8-byte Folded Spill |
| ; CHECK: mvc 168(8,%r15), 0(%r2) # 8-byte Folded Spill |
| ; CHECK-LABEL: .LBB1_2: |
| ; CHECK: cghsi 168(%r15), 2 # 8-byte Folded Reload |
| entry: |
| %cmp = icmp eq i64 %arg, 0 |
| br i1 %cmp, label %cond, label %exit |
| |
| cond: |
| %val0 = load i64, i64 *%src |
| call void asm sideeffect "", "~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() nounwind |
| br label %exit |
| |
| exit: |
| %tmp0 = phi i64 [0, %entry], [%val0, %cond] |
| call void asm sideeffect "", "~{r0},~{r1},~{r2},~{r3},~{r4},~{r5},~{r6},~{r7},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() nounwind |
| %cmp0 = icmp ne i64 %tmp0, 2 |
| %zxt0 = zext i1 %cmp0 to i64 |
| %and0 = and i64 %arg, %zxt0 |
| |
| ret i64 %and0 |
| } |