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-rw-r--r--llvm/test/CodeGen/SPARC/bigreturn.ll254
1 files changed, 254 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/SPARC/bigreturn.ll b/llvm/test/CodeGen/SPARC/bigreturn.ll
new file mode 100644
index 000000000000..25b4eeecadc0
--- /dev/null
+++ b/llvm/test/CodeGen/SPARC/bigreturn.ll
@@ -0,0 +1,254 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=sparc -disable-sparc-delay-filler -disable-sparc-leaf-proc | FileCheck --check-prefix=SPARC %s
+; RUN: llc < %s -mtriple=sparc64 -disable-sparc-delay-filler -disable-sparc-leaf-proc | FileCheck --check-prefix=SPARC64 %s
+
+;; Structs up to six registers in size can be returned in registers.
+;; Note that the maximum return size and member placement is NOT
+;; compatible with the C ABI - see SparcCallingConv.td.
+define { i32, i32 } @ret_i32_pair(i32 %a0, i32 %a1, i32* %p, i32* %q) {
+; SPARC-LABEL: ret_i32_pair:
+; SPARC: .cfi_startproc
+; SPARC-NEXT: ! %bb.0:
+; SPARC-NEXT: save %sp, -96, %sp
+; SPARC-NEXT: .cfi_def_cfa_register %fp
+; SPARC-NEXT: .cfi_window_save
+; SPARC-NEXT: .cfi_register %o7, %i7
+; SPARC-NEXT: ld [%i2], %i0
+; SPARC-NEXT: st %g0, [%i2]
+; SPARC-NEXT: ld [%i3], %i1
+; SPARC-NEXT: restore
+; SPARC-NEXT: retl
+; SPARC-NEXT: nop
+;
+; SPARC64-LABEL: ret_i32_pair:
+; SPARC64: .cfi_startproc
+; SPARC64-NEXT: ! %bb.0:
+; SPARC64-NEXT: save %sp, -128, %sp
+; SPARC64-NEXT: .cfi_def_cfa_register %fp
+; SPARC64-NEXT: .cfi_window_save
+; SPARC64-NEXT: .cfi_register %o7, %i7
+; SPARC64-NEXT: ld [%i2], %i0
+; SPARC64-NEXT: st %g0, [%i2]
+; SPARC64-NEXT: ld [%i3], %i1
+; SPARC64-NEXT: restore
+; SPARC64-NEXT: retl
+; SPARC64-NEXT: nop
+ %r1 = load i32, i32* %p
+ %rv1 = insertvalue { i32, i32 } undef, i32 %r1, 0
+ store i32 0, i32* %p
+ %r2 = load i32, i32* %q
+ %rv2 = insertvalue { i32, i32 } %rv1, i32 %r2, 1
+ ret { i32, i32 } %rv2
+}
+
+define void @call_ret_i32_pair(i32* %i0) {
+; SPARC-LABEL: call_ret_i32_pair:
+; SPARC: .cfi_startproc
+; SPARC-NEXT: ! %bb.0:
+; SPARC-NEXT: save %sp, -96, %sp
+; SPARC-NEXT: .cfi_def_cfa_register %fp
+; SPARC-NEXT: .cfi_window_save
+; SPARC-NEXT: .cfi_register %o7, %i7
+; SPARC-NEXT: call ret_i32_pair
+; SPARC-NEXT: nop
+; SPARC-NEXT: st %o0, [%i0]
+; SPARC-NEXT: st %o1, [%i0]
+; SPARC-NEXT: restore
+; SPARC-NEXT: retl
+; SPARC-NEXT: nop
+;
+; SPARC64-LABEL: call_ret_i32_pair:
+; SPARC64: .cfi_startproc
+; SPARC64-NEXT: ! %bb.0:
+; SPARC64-NEXT: save %sp, -176, %sp
+; SPARC64-NEXT: .cfi_def_cfa_register %fp
+; SPARC64-NEXT: .cfi_window_save
+; SPARC64-NEXT: .cfi_register %o7, %i7
+; SPARC64-NEXT: call ret_i32_pair
+; SPARC64-NEXT: nop
+; SPARC64-NEXT: st %o0, [%i0]
+; SPARC64-NEXT: st %o1, [%i0]
+; SPARC64-NEXT: restore
+; SPARC64-NEXT: retl
+; SPARC64-NEXT: nop
+ %rv = call { i32, i32 } @ret_i32_pair(i32 undef, i32 undef,
+ i32* undef, i32* undef)
+ %e0 = extractvalue { i32, i32 } %rv, 0
+ store volatile i32 %e0, i32* %i0
+ %e1 = extractvalue { i32, i32 } %rv, 1
+ store i32 %e1, i32* %i0
+ ret void
+}
+
+;; Functions returning structs more than six registers' worth of space
+;; should be automatically treated as an sret function.
+declare { [16 x i32] } @ret_i32_arr(i32 %input)
+
+define i32 @call_ret_i32_arr(i32 %0) {
+; SPARC-LABEL: call_ret_i32_arr:
+; SPARC: .cfi_startproc
+; SPARC-NEXT: ! %bb.0:
+; SPARC-NEXT: save %sp, -160, %sp
+; SPARC-NEXT: .cfi_def_cfa_register %fp
+; SPARC-NEXT: .cfi_window_save
+; SPARC-NEXT: .cfi_register %o7, %i7
+; SPARC-NEXT: add %fp, -64, %i1
+; SPARC-NEXT: st %i1, [%sp+64]
+; SPARC-NEXT: mov %i0, %o0
+; SPARC-NEXT: call ret_i32_arr
+; SPARC-NEXT: nop
+; SPARC-NEXT: unimp 64
+; SPARC-NEXT: ld [%fp+-4], %i0
+; SPARC-NEXT: restore
+; SPARC-NEXT: retl
+; SPARC-NEXT: nop
+;
+; SPARC64-LABEL: call_ret_i32_arr:
+; SPARC64: .cfi_startproc
+; SPARC64-NEXT: ! %bb.0:
+; SPARC64-NEXT: save %sp, -240, %sp
+; SPARC64-NEXT: .cfi_def_cfa_register %fp
+; SPARC64-NEXT: .cfi_window_save
+; SPARC64-NEXT: .cfi_register %o7, %i7
+; SPARC64-NEXT: add %fp, 1983, %o0
+; SPARC64-NEXT: mov %i0, %o1
+; SPARC64-NEXT: call ret_i32_arr
+; SPARC64-NEXT: nop
+; SPARC64-NEXT: ld [%fp+2043], %i0
+; SPARC64-NEXT: restore
+; SPARC64-NEXT: retl
+; SPARC64-NEXT: nop
+ %2 = call { [16 x i32] } @ret_i32_arr(i32 %0)
+ %3 = extractvalue { [16 x i32] } %2, 0
+ %4 = extractvalue [16 x i32] %3, 15
+ ret i32 %4
+}
+
+;; Structs up to six registers in size can be returned in registers.
+;; Note that the maximum return size and member placement is NOT
+;; compatible with the C ABI - see SparcCallingConv.td.
+define { i64, i64 } @ret_i64_pair(i32 %a0, i32 %a1, i64* %p, i64* %q) {
+; SPARC-LABEL: ret_i64_pair:
+; SPARC: .cfi_startproc
+; SPARC-NEXT: ! %bb.0:
+; SPARC-NEXT: save %sp, -96, %sp
+; SPARC-NEXT: .cfi_def_cfa_register %fp
+; SPARC-NEXT: .cfi_window_save
+; SPARC-NEXT: .cfi_register %o7, %i7
+; SPARC-NEXT: mov %g0, %i4
+; SPARC-NEXT: ldd [%i2], %i0
+; SPARC-NEXT: mov %i4, %i5
+; SPARC-NEXT: std %i4, [%i2]
+; SPARC-NEXT: ldd [%i3], %i2
+; SPARC-NEXT: restore
+; SPARC-NEXT: retl
+; SPARC-NEXT: nop
+;
+; SPARC64-LABEL: ret_i64_pair:
+; SPARC64: .cfi_startproc
+; SPARC64-NEXT: ! %bb.0:
+; SPARC64-NEXT: save %sp, -128, %sp
+; SPARC64-NEXT: .cfi_def_cfa_register %fp
+; SPARC64-NEXT: .cfi_window_save
+; SPARC64-NEXT: .cfi_register %o7, %i7
+; SPARC64-NEXT: ldx [%i2], %i0
+; SPARC64-NEXT: stx %g0, [%i2]
+; SPARC64-NEXT: ldx [%i3], %i1
+; SPARC64-NEXT: restore
+; SPARC64-NEXT: retl
+; SPARC64-NEXT: nop
+ %r1 = load i64, i64* %p
+ %rv1 = insertvalue { i64, i64 } undef, i64 %r1, 0
+ store i64 0, i64* %p
+ %r2 = load i64, i64* %q
+ %rv2 = insertvalue { i64, i64 } %rv1, i64 %r2, 1
+ ret { i64, i64 } %rv2
+}
+
+define void @call_ret_i64_pair(i64* %i0) {
+; SPARC-LABEL: call_ret_i64_pair:
+; SPARC: .cfi_startproc
+; SPARC-NEXT: ! %bb.0:
+; SPARC-NEXT: save %sp, -96, %sp
+; SPARC-NEXT: .cfi_def_cfa_register %fp
+; SPARC-NEXT: .cfi_window_save
+; SPARC-NEXT: .cfi_register %o7, %i7
+; SPARC-NEXT: call ret_i64_pair
+; SPARC-NEXT: nop
+; SPARC-NEXT: ! kill: def $o0 killed $o0 killed $o0_o1 def $o0_o1
+; SPARC-NEXT: ! kill: def $o2 killed $o2 killed $o2_o3 def $o2_o3
+; SPARC-NEXT: ! kill: def $o1 killed $o1 killed $o0_o1 def $o0_o1
+; SPARC-NEXT: std %o0, [%i0]
+; SPARC-NEXT: ! kill: def $o3 killed $o3 killed $o2_o3 def $o2_o3
+; SPARC-NEXT: std %o2, [%i0]
+; SPARC-NEXT: restore
+; SPARC-NEXT: retl
+; SPARC-NEXT: nop
+;
+; SPARC64-LABEL: call_ret_i64_pair:
+; SPARC64: .cfi_startproc
+; SPARC64-NEXT: ! %bb.0:
+; SPARC64-NEXT: save %sp, -176, %sp
+; SPARC64-NEXT: .cfi_def_cfa_register %fp
+; SPARC64-NEXT: .cfi_window_save
+; SPARC64-NEXT: .cfi_register %o7, %i7
+; SPARC64-NEXT: call ret_i64_pair
+; SPARC64-NEXT: nop
+; SPARC64-NEXT: stx %o0, [%i0]
+; SPARC64-NEXT: stx %o1, [%i0]
+; SPARC64-NEXT: restore
+; SPARC64-NEXT: retl
+; SPARC64-NEXT: nop
+ %rv = call { i64, i64 } @ret_i64_pair(i32 undef, i32 undef,
+ i64* undef, i64* undef)
+ %e0 = extractvalue { i64, i64 } %rv, 0
+ store volatile i64 %e0, i64* %i0
+ %e1 = extractvalue { i64, i64 } %rv, 1
+ store i64 %e1, i64* %i0
+ ret void
+}
+
+;; Functions returning structs more than six registers' worth of space
+;; should be automatically treated as an sret function.
+declare { [16 x i64] } @ret_i64_arr(i64 %input)
+
+define i64 @call_ret_i64_arr(i64 %0) {
+; SPARC-LABEL: call_ret_i64_arr:
+; SPARC: .cfi_startproc
+; SPARC-NEXT: ! %bb.0:
+; SPARC-NEXT: save %sp, -224, %sp
+; SPARC-NEXT: .cfi_def_cfa_register %fp
+; SPARC-NEXT: .cfi_window_save
+; SPARC-NEXT: .cfi_register %o7, %i7
+; SPARC-NEXT: add %fp, -128, %i2
+; SPARC-NEXT: st %i2, [%sp+64]
+; SPARC-NEXT: mov %i0, %o0
+; SPARC-NEXT: mov %i1, %o1
+; SPARC-NEXT: call ret_i64_arr
+; SPARC-NEXT: nop
+; SPARC-NEXT: unimp 128
+; SPARC-NEXT: ldd [%fp+-8], %i0
+; SPARC-NEXT: restore
+; SPARC-NEXT: retl
+; SPARC-NEXT: nop
+;
+; SPARC64-LABEL: call_ret_i64_arr:
+; SPARC64: .cfi_startproc
+; SPARC64-NEXT: ! %bb.0:
+; SPARC64-NEXT: save %sp, -304, %sp
+; SPARC64-NEXT: .cfi_def_cfa_register %fp
+; SPARC64-NEXT: .cfi_window_save
+; SPARC64-NEXT: .cfi_register %o7, %i7
+; SPARC64-NEXT: add %fp, 1919, %o0
+; SPARC64-NEXT: mov %i0, %o1
+; SPARC64-NEXT: call ret_i64_arr
+; SPARC64-NEXT: nop
+; SPARC64-NEXT: ldx [%fp+2039], %i0
+; SPARC64-NEXT: restore
+; SPARC64-NEXT: retl
+; SPARC64-NEXT: nop
+ %2 = call { [16 x i64] } @ret_i64_arr(i64 %0)
+ %3 = extractvalue { [16 x i64] } %2, 0
+ %4 = extractvalue [16 x i64] %3, 15
+ ret i64 %4
+}
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