3 files changed, 157 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/PowerPC/save-bp.ll b/llvm/test/CodeGen/PowerPC/save-bp.ll
new file mode 100644
index 00000000000..1c7e19a1d5c
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/save-bp.ll
@@ -0,0 +1,54 @@
+; RUN: llc -march=ppc64 -ppc-always-use-base-pointer < %s | FileCheck %s --check-prefix CHECK --check-prefix PPC64
+; RUN: llc -march=ppc32 -ppc-always-use-base-pointer < %s | FileCheck %s --check-prefix CHECK --check-prefix PPC32
+; RUN: llc -march=ppc32 -ppc-always-use-base-pointer -relocation-model pic < %s | FileCheck %s --check-prefix CHECK --check-prefix PPC32PIC
+
+; CHECK-LABEL: fred:
+
+; Check for saving/restoring frame pointer (X31) and base pointer (X30)
+; on ppc64:
+; PPC64: std 31, -8(1)
+; PPC64: std 30, -16(1)
+; PPC64: ld 31, -8(1)
+; PPC64: ld 30, -16(1)
+
+; Check for saving/restoring frame pointer (R31) and base pointer (R30)
+; on ppc32:
+; PPC32: stwux 1, 1, 0
+; PPC32; addic 0, 0, -4
+; PPC32: stwx 31, 0, 0
+; PPC32: addic 0, 0, -4
+; PPC32: stwx 30, 0, 0
+; The restore sequence:
+; PPC32: lwz 31, 0(1)
+; PPC32: addic 30, 0, 8
+; PPC32: lwz 0, -4(31)
+; PPC32: lwz 30, -8(31)
+; PPC32: mr 1, 31
+; PPC32: mr 31, 0
+
+; Check for saving/restoring frame pointer (R31) and base pointer (R29)
+; on ppc32/pic. This is mostly the same as without pic, except that base
+; pointer is in R29.
+; PPC32PIC: stwux 1, 1, 0
+; PPC32PIC; addic 0, 0, -4
+; PPC32PIC: stwx 31, 0, 0
+; PPC32PIC: addic 0, 0, -8
+; PPC32PIC: stwx 29, 0, 0
+; The restore sequence:
+; PPC32PIC: lwz 31, 0(1)
+; PPC32PIC: addic 29, 0, 12
+; PPC32PIC: lwz 0, -4(31)
+; PPC32PIC: lwz 29, -12(31)
+; PPC32PIC: mr 1, 31
+; PPC32PIC: mr 31, 0
+
+
+target datalayout = "E-m:e-p:32:32-i64:64-n32"
+target triple = "powerpc-unknown-freebsd"
+
+define i64 @fred() local_unnamed_addr #0 {
+entry:
+  ret i64 0
+}
+
+attributes #0 = { norecurse readnone nounwind sspstrong "no-frame-pointer-elim"="true" "target-cpu"="ppc" }
diff --git a/llvm/test/CodeGen/PowerPC/save-cr-ppc32svr4.ll b/llvm/test/CodeGen/PowerPC/save-cr-ppc32svr4.ll
new file mode 100644
index 00000000000..9fabca18605
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/save-cr-ppc32svr4.ll
@@ -0,0 +1,46 @@
+; RUN: llc -march=ppc32 -relocation-model pic < %s | FileCheck %s
+;
+; Make sure that the CR register is saved correctly on PPC32/SVR4.
+
+; CHECK-LABEL: fred:
+; CHECK: stwu 1, -32(1)
+; CHECK: stw 31, 28(1)
+; CHECK: mr 31, 1
+; CHECK: stw 30, 24(1)
+; CHECK: mfcr [[CR:[0-9]+]]
+; CHECK: stw [[CR]], 20(31)
+
+target datalayout = "E-m:e-p:32:32-i64:64-n32"
+target triple = "powerpc-unknown-freebsd"
+
+; Function Attrs: norecurse nounwind readnone sspstrong
+define i64 @fred(double %a0) local_unnamed_addr #0 {
+b1:
+  %v2 = fcmp olt double %a0, 0x43E0000000000000
+  br i1 %v2, label %b3, label %b7
+
+b3:                                               ; preds = %b1
+  %v4 = fcmp olt double %a0, 0xC3E0000000000000
+  %v5 = fptosi double %a0 to i64
+  %v6 = select i1 %v4, i64 -9223372036854775808, i64 %v5
+  br label %b14
+
+b7:                                               ; preds = %b1
+  %v8 = fcmp olt double %a0, 0x43F0000000000000
+  br i1 %v8, label %b9, label %b11
+
+b9:                                               ; preds = %b7
+  %v10 = fptoui double %a0 to i64
+  br label %b14
+
+b11:                                              ; preds = %b7
+  %v12 = fcmp ogt double %a0, 0.000000e+00
+  %v13 = sext i1 %v12 to i64
+  br label %b14
+
+b14:                                              ; preds = %b11, %b9, %b3
+  %v15 = phi i64 [ %v6, %b3 ], [ %v10, %b9 ], [ %v13, %b11 ]
+  ret i64 %v15
+}
+
+attributes #0 = { norecurse nounwind readnone sspstrong "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "stack-protector-buffer-size"="8" "target-cpu"="ppc" }
diff --git a/llvm/test/CodeGen/PowerPC/save-crbp-ppc32svr4.ll b/llvm/test/CodeGen/PowerPC/save-crbp-ppc32svr4.ll
new file mode 100644
index 00000000000..b7b3c1ada96
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/save-crbp-ppc32svr4.ll
@@ -0,0 +1,57 @@
+; RUN: llc -march=ppc32 -relocation-model pic < %s | FileCheck %s
+
+; CHECK-LABEL: fred
+; CHECK: stwux 1, 1, 0
+; Save R31..R29 via R0:
+; CHECK: addic 0, 0, -4
+; CHECK: stwx 31, 0, 0
+; CHECK: addic 0, 0, -4
+; CHECK: stwx 30, 0, 0
+; CHECK: addic 0, 0, -4
+; CHECK: stwx 29, 0, 0
+; Set R29 back to the value of R0 from before the updates:
+; CHECK: addic 29, 0, 12
+; Save CR through R12 using R29 as the stack pointer (aligned base pointer).
+; CHECK: mfcr 12
+; CHECK: stw 28, -16(29)
+; CHECK: stw 12, -20(29)
+
+target datalayout = "E-m:e-p:32:32-i64:64-n32"
+target triple = "powerpc-unknown-freebsd"
+
+; Function Attrs: norecurse readnone sspstrong
+define i64 @fred(double %a0) local_unnamed_addr #0 {
+b1:
+  %v2 = alloca i64, align 128
+  store i64 0, i64* %v2
+  %v3 = fcmp olt double %a0, 0x43E0000000000000
+  br i1 %v3, label %b4, label %b8
+
+b4:                                               ; preds = %b1
+  %v5 = fcmp olt double %a0, 0xC3E0000000000000
+  %v6 = fptosi double %a0 to i64
+  store i64 %v6, i64* %v2
+  %v7 = select i1 %v5, i64 -9223372036854775808, i64 %v6
+  br label %b15
+
+b8:                                               ; preds = %b1
+  %v9 = fcmp olt double %a0, 0x43F0000000000000
+  br i1 %v9, label %b10, label %b12
+
+b10:                                              ; preds = %b8
+  %v11 = fptoui double %a0 to i64
+  br label %b15
+
+b12:                                              ; preds = %b8
+  %v13 = fcmp ogt double %a0, 0.000000e+00
+  %v14 = sext i1 %v13 to i64
+  br label %b15
+
+b15:                                              ; preds = %b12, %b10, %b4
+  %v16 = phi i64 [ %v7, %b4 ], [ %v11, %b10 ], [ %v14, %b12 ]
+  %v17 = load i64, i64* %v2
+  %v18 = add i64 %v17, %v16
+  ret i64 %v18
+}
+
+attributes #0 = { norecurse readnone sspstrong "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "stack-protector-buffer-size"="8" "target-cpu"="ppc" }