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-rw-r--r--test/CodeGen/ARM/segmented-stacks.ll235
1 files changed, 235 insertions, 0 deletions
diff --git a/test/CodeGen/ARM/segmented-stacks.ll b/test/CodeGen/ARM/segmented-stacks.ll
new file mode 100644
index 0000000..5eff633
--- /dev/null
+++ b/test/CodeGen/ARM/segmented-stacks.ll
@@ -0,0 +1,235 @@
+; RUN: llc < %s -mtriple=arm-linux-androideabi -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=ARM-android
+; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -segmented-stacks -verify-machineinstrs | FileCheck %s -check-prefix=ARM-linux
+
+; We used to crash with filetype=obj
+; RUN: llc < %s -mtriple=arm-linux-androideabi -segmented-stacks -filetype=obj
+; RUN: llc < %s -mtriple=arm-linux-unknown-gnueabi -segmented-stacks -filetype=obj
+
+
+; Just to prevent the alloca from being optimized away
+declare void @dummy_use(i32*, i32)
+
+define void @test_basic() {
+ %mem = alloca i32, i32 10
+ call void @dummy_use (i32* %mem, i32 10)
+ ret void
+
+; ARM-linux: test_basic:
+
+; ARM-linux: push {r4, r5}
+; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3
+; ARM-linux-NEXT: mov r5, sp
+; ARM-linux-NEXT: ldr r4, [r4, #4]
+; ARM-linux-NEXT: cmp r4, r5
+; ARM-linux-NEXT: blo .LBB0_2
+
+; ARM-linux: mov r4, #48
+; ARM-linux-NEXT: mov r5, #0
+; ARM-linux-NEXT: stmdb sp!, {lr}
+; ARM-linux-NEXT: bl __morestack
+; ARM-linux-NEXT: ldm sp!, {lr}
+; ARM-linux-NEXT: pop {r4, r5}
+; ARM-linux-NEXT: bx lr
+
+; ARM-linux: pop {r4, r5}
+
+; ARM-android: test_basic:
+
+; ARM-android: push {r4, r5}
+; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3
+; ARM-android-NEXT: mov r5, sp
+; ARM-android-NEXT: ldr r4, [r4, #252]
+; ARM-android-NEXT: cmp r4, r5
+; ARM-android-NEXT: blo .LBB0_2
+
+; ARM-android: mov r4, #48
+; ARM-android-NEXT: mov r5, #0
+; ARM-android-NEXT: stmdb sp!, {lr}
+; ARM-android-NEXT: bl __morestack
+; ARM-android-NEXT: ldm sp!, {lr}
+; ARM-android-NEXT: pop {r4, r5}
+; ARM-android-NEXT: bx lr
+
+; ARM-android: pop {r4, r5}
+
+}
+
+define i32 @test_nested(i32 * nest %closure, i32 %other) {
+ %addend = load i32 * %closure
+ %result = add i32 %other, %addend
+ ret i32 %result
+
+; ARM-linux: test_nested:
+
+; ARM-linux: push {r4, r5}
+; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3
+; ARM-linux-NEXT: mov r5, sp
+; ARM-linux-NEXT: ldr r4, [r4, #4]
+; ARM-linux-NEXT: cmp r4, r5
+; ARM-linux-NEXT: blo .LBB1_2
+
+; ARM-linux: mov r4, #0
+; ARM-linux-NEXT: mov r5, #0
+; ARM-linux-NEXT: stmdb sp!, {lr}
+; ARM-linux-NEXT: bl __morestack
+; ARM-linux-NEXT: ldm sp!, {lr}
+; ARM-linux-NEXT: pop {r4, r5}
+; ARM-linux-NEXT: bx lr
+
+; ARM-linux: pop {r4, r5}
+
+; ARM-android: test_nested:
+
+; ARM-android: push {r4, r5}
+; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3
+; ARM-android-NEXT: mov r5, sp
+; ARM-android-NEXT: ldr r4, [r4, #252]
+; ARM-android-NEXT: cmp r4, r5
+; ARM-android-NEXT: blo .LBB1_2
+
+; ARM-android: mov r4, #0
+; ARM-android-NEXT: mov r5, #0
+; ARM-android-NEXT: stmdb sp!, {lr}
+; ARM-android-NEXT: bl __morestack
+; ARM-android-NEXT: ldm sp!, {lr}
+; ARM-android-NEXT: pop {r4, r5}
+; ARM-android-NEXT: bx lr
+
+; ARM-android: pop {r4, r5}
+
+}
+
+define void @test_large() {
+ %mem = alloca i32, i32 10000
+ call void @dummy_use (i32* %mem, i32 0)
+ ret void
+
+; ARM-linux: test_large:
+
+; ARM-linux: push {r4, r5}
+; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3
+; ARM-linux-NEXT: sub r5, sp, #40192
+; ARM-linux-NEXT: ldr r4, [r4, #4]
+; ARM-linux-NEXT: cmp r4, r5
+; ARM-linux-NEXT: blo .LBB2_2
+
+; ARM-linux: mov r4, #40192
+; ARM-linux-NEXT: mov r5, #0
+; ARM-linux-NEXT: stmdb sp!, {lr}
+; ARM-linux-NEXT: bl __morestack
+; ARM-linux-NEXT: ldm sp!, {lr}
+; ARM-linux-NEXT: pop {r4, r5}
+; ARM-linux-NEXT: bx lr
+
+; ARM-linux: pop {r4, r5}
+
+; ARM-android: test_large:
+
+; ARM-android: push {r4, r5}
+; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3
+; ARM-android-NEXT: sub r5, sp, #40192
+; ARM-android-NEXT: ldr r4, [r4, #252]
+; ARM-android-NEXT: cmp r4, r5
+; ARM-android-NEXT: blo .LBB2_2
+
+; ARM-android: mov r4, #40192
+; ARM-android-NEXT: mov r5, #0
+; ARM-android-NEXT: stmdb sp!, {lr}
+; ARM-android-NEXT: bl __morestack
+; ARM-android-NEXT: ldm sp!, {lr}
+; ARM-android-NEXT: pop {r4, r5}
+; ARM-android-NEXT: bx lr
+
+; ARM-android: pop {r4, r5}
+
+}
+
+define fastcc void @test_fastcc() {
+ %mem = alloca i32, i32 10
+ call void @dummy_use (i32* %mem, i32 10)
+ ret void
+
+; ARM-linux: test_fastcc:
+
+; ARM-linux: push {r4, r5}
+; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3
+; ARM-linux-NEXT: mov r5, sp
+; ARM-linux-NEXT: ldr r4, [r4, #4]
+; ARM-linux-NEXT: cmp r4, r5
+; ARM-linux-NEXT: blo .LBB3_2
+
+; ARM-linux: mov r4, #48
+; ARM-linux-NEXT: mov r5, #0
+; ARM-linux-NEXT: stmdb sp!, {lr}
+; ARM-linux-NEXT: bl __morestack
+; ARM-linux-NEXT: ldm sp!, {lr}
+; ARM-linux-NEXT: pop {r4, r5}
+; ARM-linux-NEXT: bx lr
+
+; ARM-linux: pop {r4, r5}
+
+; ARM-android: test_fastcc:
+
+; ARM-android: push {r4, r5}
+; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3
+; ARM-android-NEXT: mov r5, sp
+; ARM-android-NEXT: ldr r4, [r4, #252]
+; ARM-android-NEXT: cmp r4, r5
+; ARM-android-NEXT: blo .LBB3_2
+
+; ARM-android: mov r4, #48
+; ARM-android-NEXT: mov r5, #0
+; ARM-android-NEXT: stmdb sp!, {lr}
+; ARM-android-NEXT: bl __morestack
+; ARM-android-NEXT: ldm sp!, {lr}
+; ARM-android-NEXT: pop {r4, r5}
+; ARM-android-NEXT: bx lr
+
+; ARM-android: pop {r4, r5}
+
+}
+
+define fastcc void @test_fastcc_large() {
+ %mem = alloca i32, i32 10000
+ call void @dummy_use (i32* %mem, i32 0)
+ ret void
+
+; ARM-linux: test_fastcc_large:
+
+; ARM-linux: push {r4, r5}
+; ARM-linux-NEXT: mrc p15, #0, r4, c13, c0, #3
+; ARM-linux-NEXT: sub r5, sp, #40192
+; ARM-linux-NEXT: ldr r4, [r4, #4]
+; ARM-linux-NEXT: cmp r4, r5
+; ARM-linux-NEXT: blo .LBB4_2
+
+; ARM-linux: mov r4, #40192
+; ARM-linux-NEXT: mov r5, #0
+; ARM-linux-NEXT: stmdb sp!, {lr}
+; ARM-linux-NEXT: bl __morestack
+; ARM-linux-NEXT: ldm sp!, {lr}
+; ARM-linux-NEXT: pop {r4, r5}
+; ARM-linux-NEXT: bx lr
+
+; ARM-linux: pop {r4, r5}
+
+; ARM-android: test_fastcc_large:
+
+; ARM-android: push {r4, r5}
+; ARM-android-NEXT: mrc p15, #0, r4, c13, c0, #3
+; ARM-android-NEXT: sub r5, sp, #40192
+; ARM-android-NEXT: ldr r4, [r4, #252]
+; ARM-android-NEXT: cmp r4, r5
+; ARM-android-NEXT: blo .LBB4_2
+
+; ARM-android: mov r4, #40192
+; ARM-android-NEXT: mov r5, #0
+; ARM-android-NEXT: stmdb sp!, {lr}
+; ARM-android-NEXT: bl __morestack
+; ARM-android-NEXT: ldm sp!, {lr}
+; ARM-android-NEXT: pop {r4, r5}
+; ARM-android-NEXT: bx lr
+
+; ARM-android: pop {r4, r5}
+
+}
generated by cgit v1.1 at 2024-05-29 00:21:51 +0000