| # RUN: llc -mtriple=s390x-linux-gnu -start-before=prologepilog %s -o - -print-after=prologepilog \ |
| # RUN: -verify-machineinstrs 2>&1 | FileCheck %s |
| # REQUIRES: asserts |
| # |
| # Test that R6 when used for an argument is modelled as being live throughout |
| # the function when not saved in the prologue.. |
| |
| # CHECK: # *** IR Dump After Prologue/Epilogue Insertion & Frame Finalization (prologepilog) ***: |
| # CHECK-NEXT: # Machine code for function fun0: |
| # CHECK-LABEL: bb.0: |
| # CHECK: liveins:{{.*}} $r6d |
| # CHECK: STMG killed $r7d, killed $r15d |
| # CHECK: STG renamable $r6d |
| # CHECK: End machine code for function fun0. |
| |
| |
| --- | |
| |
| @g_181 = external dso_local global i32, align 4 |
| @g_1390 = external dso_local constant i64*, align 8 |
| |
| define internal i8 @fun0(i8 %arg, i8 %arg1, i32 %arg2, i8 %arg3, i32* %arg4, float %F0, float %F1) #0 { |
| ret i8 0 |
| } |
| |
| ; Same function but in a single block which will make the verifier complain |
| ; if R6 is killed by the original store before the point where the |
| ; RegScavenger inserts its (killing) store of R6. |
| define internal i8 @fun1(i8 %arg, i8 %arg1, i32 %arg2, i8 %arg3, i32* %arg4) #0 { |
| ret i8 0 |
| } |
| |
| attributes #0 = { "frame-pointer"="all" } |
| |
| ... |
| --- |
| name: fun0 |
| alignment: 16 |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$r6d' } |
| - { reg: '$f0s' } |
| - { reg: '$f2s' } |
| frameInfo: |
| maxAlignment: 8 |
| stack: |
| - { id: 0, size: 96, alignment: 8 } |
| - { id: 1, size: 1960, alignment: 8 } |
| - { id: 2, size: 8, alignment: 8 } |
| - { id: 3, size: 320, alignment: 8 } |
| - { id: 4, size: 4, alignment: 4 } |
| - { id: 5, size: 8, alignment: 8 } |
| - { id: 6, size: 8, alignment: 8 } |
| - { id: 7, size: 4, alignment: 4 } |
| - { id: 8, size: 8, alignment: 8 } |
| - { id: 9, size: 4, alignment: 4 } |
| - { id: 10, size: 8, alignment: 8 } |
| - { id: 11, size: 8, alignment: 8 } |
| - { id: 12, size: 8, alignment: 8 } |
| - { id: 13, size: 8, alignment: 8 } |
| - { id: 14, size: 24, alignment: 4 } |
| - { id: 15, size: 4, alignment: 4 } |
| - { id: 16, size: 1792, alignment: 8 } |
| - { id: 17, size: 8, alignment: 8 } |
| - { id: 18, size: 8, alignment: 8 } |
| - { id: 19, size: 8, alignment: 8 } |
| - { id: 20, size: 1, alignment: 2 } |
| - { id: 21, size: 672, alignment: 8 } |
| - { id: 22, size: 4, alignment: 4 } |
| - { id: 23, size: 4, alignment: 4 } |
| - { id: 24, size: 4, alignment: 4 } |
| - { id: 25, size: 64, alignment: 8 } |
| machineFunctionInfo: {} |
| body: | |
| bb.0: |
| liveins: $f0s, $f2s, $r6d |
| |
| STG killed renamable $r6d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i32** undef`) |
| renamable $r0d = LARL @g_181 |
| nofpexcept CEBR renamable $f0s, renamable $f2s, implicit-def $cc, implicit $fpc |
| STG renamable $r0d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i32** undef`) |
| BRC 15, 4, %bb.2, implicit killed $cc |
| |
| bb.1: |
| liveins: $f2s, $r0d |
| |
| renamable $f0s = COPY killed renamable $f2s |
| |
| bb.2: |
| liveins: $f0s, $r0d |
| |
| STE killed renamable $f0s, undef renamable $r1d, 0, $noreg :: (volatile store (s32) into `float* undef`) |
| renamable $r1d = nuw LA %stack.0, 16, $noreg |
| renamable $r2d = nuw LA %stack.0, 24, $noreg |
| renamable $r3d = LA %stack.0, 40, $noreg |
| renamable $r4d = LARL @g_1390 |
| STG renamable $r4d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| renamable $r5d = nuw LA %stack.0, 48, $noreg |
| renamable $r14d = LA %stack.0, 72, $noreg |
| renamable $r13d = LA %stack.0, 80, $noreg |
| renamable $r12d = LA %stack.0, 56, $noreg |
| renamable $r10d = LA %stack.0, 0, $noreg |
| STG renamable $r10d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| renamable $r9d = LA %stack.0, 64, $noreg |
| renamable $r8d = LA %stack.0, 88, $noreg |
| renamable $r7d = nuw LA %stack.0, 8, $noreg |
| MVGHI %stack.1, 904, 0 |
| STG killed renamable $r9d, $noreg, 0, $noreg :: (store (s64) into `i64*** null`) |
| STG killed renamable $r3d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r14d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r7d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r1d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r4d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r2d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r5d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r8d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r12d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r13d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r10d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| $r2l = LHI 0 |
| STG killed renamable $r0d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i32** undef`) |
| Return implicit $r2l |
| |
| ... |
| --- |
| name: fun1 |
| alignment: 16 |
| tracksRegLiveness: true |
| liveins: |
| - { reg: '$r6d' } |
| frameInfo: |
| maxAlignment: 8 |
| stack: |
| - { id: 0, size: 96, alignment: 8 } |
| - { id: 1, size: 1960, alignment: 8 } |
| - { id: 2, size: 8, alignment: 8 } |
| - { id: 3, size: 320, alignment: 8 } |
| - { id: 4, size: 4, alignment: 4 } |
| - { id: 5, size: 8, alignment: 8 } |
| - { id: 6, size: 8, alignment: 8 } |
| - { id: 7, size: 4, alignment: 4 } |
| - { id: 8, size: 8, alignment: 8 } |
| - { id: 9, size: 4, alignment: 4 } |
| - { id: 10, size: 8, alignment: 8 } |
| - { id: 11, size: 8, alignment: 8 } |
| - { id: 12, size: 8, alignment: 8 } |
| - { id: 13, size: 8, alignment: 8 } |
| - { id: 14, size: 24, alignment: 4 } |
| - { id: 15, size: 4, alignment: 4 } |
| - { id: 16, size: 1792, alignment: 8 } |
| - { id: 17, size: 8, alignment: 8 } |
| - { id: 18, size: 8, alignment: 8 } |
| - { id: 19, size: 8, alignment: 8 } |
| - { id: 20, size: 1, alignment: 2 } |
| - { id: 21, size: 672, alignment: 8 } |
| - { id: 22, size: 4, alignment: 4 } |
| - { id: 23, size: 4, alignment: 4 } |
| - { id: 24, size: 4, alignment: 4 } |
| - { id: 25, size: 64, alignment: 8 } |
| machineFunctionInfo: {} |
| body: | |
| bb.0: |
| liveins: $r6d |
| |
| STG killed renamable $r6d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i32** undef`) |
| renamable $r0d = LARL @g_181 |
| STG renamable $r0d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i32** undef`) |
| renamable $r1d = nuw LA %stack.0, 16, $noreg |
| renamable $r2d = nuw LA %stack.0, 24, $noreg |
| renamable $r3d = LA %stack.0, 40, $noreg |
| renamable $r4d = LARL @g_1390 |
| STG renamable $r4d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| renamable $r5d = nuw LA %stack.0, 48, $noreg |
| renamable $r14d = LA %stack.0, 72, $noreg |
| renamable $r13d = LA %stack.0, 80, $noreg |
| renamable $r12d = LA %stack.0, 56, $noreg |
| renamable $r10d = LA %stack.0, 0, $noreg |
| STG renamable $r10d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| renamable $r9d = LA %stack.0, 64, $noreg |
| renamable $r8d = LA %stack.0, 88, $noreg |
| renamable $r7d = nuw LA %stack.0, 8, $noreg |
| MVGHI %stack.1, 904, 0 |
| STG killed renamable $r9d, $noreg, 0, $noreg :: (store (s64) into `i64*** null`) |
| STG killed renamable $r3d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r14d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r7d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r1d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r4d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r2d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r5d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r8d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r12d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r13d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| STG killed renamable $r10d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i64*** undef`) |
| $r2l = LHI 0 |
| STG killed renamable $r0d, undef renamable $r1d, 0, $noreg :: (store (s64) into `i32** undef`) |
| Return implicit $r2l |
| |
| ... |