1 files changed, 64 insertions, 0 deletions
diff --git a/test/ELF/ppc64-split-stack-adjust-overflow.s b/test/ELF/ppc64-split-stack-adjust-overflow.s
new file mode 100644
index 0000000000000..874f45cd0e7d0
--- /dev/null
+++ b/test/ELF/ppc64-split-stack-adjust-overflow.s
@@ -0,0 +1,64 @@
+# REQUIRES: ppc
+
+# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t1.o
+# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %p/Inputs/ppc64-no-split-stack.s -o %t2.o
+
+# RUN: not ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 2>&1 | \
+# RUN: FileCheck -check-prefix=OVERFLOW %s
+# RUN: not ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 \
+# RUN: -split-stack-adjust-size 4097 2>&1 | FileCheck -check-prefix=OVERFLOW %s
+# RUN: ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 -split-stack-adjust-size 4096
+# RUN: llvm-objdump -d %t | FileCheck %s
+
+# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t1.o
+# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %p/Inputs/ppc64-no-split-stack.s -o %t2.o
+
+# RUN: not ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 2>&1 | \
+# RUN: FileCheck -check-prefix=OVERFLOW %s
+# RUN: not ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 \
+# RUN: -split-stack-adjust-size 4097 2>&1 | FileCheck -check-prefix=OVERFLOW %s
+# RUN: ld.lld %t1.o %t2.o -o %t --defsym __morestack=0x10010000 -split-stack-adjust-size 4096
+# RUN: llvm-objdump -d %t | FileCheck %s
+
+# OVERFLOW: error: {{.*}}.o:(function caller: .text+0x8): split-stack prologue adjustment overflows
+
+        .p2align    2
+        .global caller
+        .type caller, @function
+caller:
+.Lcaller_gep:
+    addis 2, 12, .TOC.-.Lcaller_gep@ha
+    addi 2, 2, .TOC.-.Lcaller_gep@l
+    .localentry caller, .-caller
+    ld 0, -0x7040(13)
+    addis 12, 1, -32768
+    addi  12, 12, 4096
+    cmpld 7, 12, 0
+    blt- 7, .Lcaller_alloc_more
+.Lcaller_body:
+    mflr 0
+    std 0, 16(1)
+    stdu 1, -32(1)
+    bl nss_callee
+    addi 1, 1, 32
+    ld 0, 16(1)
+    mtlr 0
+    blr
+.Lcaller_alloc_more:
+    mflr 0
+    std 0, 16(1)
+    bl __morestack
+    ld 0, 16(1)
+    mtlr 0
+    blr
+    b .Lcaller_body
+        .size caller, .-caller
+
+# CHECK-LABEL: caller
+# CHECK:      ld 0, -28736(13)
+# CHECK-NEXT: addis 12, 1, -32768
+# CHECK-NEXT: nop
+# CHECK-NEXT: cmpld 7, 12, 0
+# CHECK-NEXT: bt- 28, .+36
+
+.section        .note.GNU-split-stack,"",@progbits