[PowerPC] Miscellaneous fast-isel test cases.

Here are a few more tests that now pass after the recent fast-isel
commits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189637 91177308-0d34-0410-b5e6-96231b3b80d8

4 files changed, 131 insertions, 0 deletions

diff --git a/test/CodeGen/PowerPC/fast-isel-GEP-coalesce.ll b/test/CodeGen/PowerPC/fast-isel-GEP-coalesce.ll
new file mode 100644
index 0000000000..7bdda0494b
--- /dev/null
+++ b/test/CodeGen/PowerPC/fast-isel-GEP-coalesce.ll
@@ -0,0 +1,48 @@
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
+
+%struct.A = type { i32, [2 x [2 x i32]], i8, [3 x [3 x [3 x i32]]] }
+%struct.B = type { i32, [2 x [2 x [2 x %struct.A]]] }
+
+@arr = common global [2 x [2 x [2 x [2 x [2 x i32]]]]] zeroinitializer, align 4
+@A = common global [3 x [3 x %struct.A]] zeroinitializer, align 4
+@B = common global [2 x [2 x [2 x %struct.B]]] zeroinitializer, align 4
+
+define i32* @t1() nounwind {
+entry:
+; ELF64: t1
+  %addr = alloca i32*, align 4
+  store i32* getelementptr inbounds ([2 x [2 x [2 x [2 x [2 x i32]]]]]* @arr, i32 0, i32 1, i32 1, i32 1, i32 1, i32 1), i32** %addr, align 4
+; ELF64: addi {{[0-9]+}}, {{[0-9]+}}, 124
+  %0 = load i32** %addr, align 4
+  ret i32* %0
+}
+
+define i32* @t2() nounwind {
+entry:
+; ELF64: t2
+  %addr = alloca i32*, align 4
+  store i32* getelementptr inbounds ([3 x [3 x %struct.A]]* @A, i32 0, i32 2, i32 2, i32 3, i32 1, i32 2, i32 2), i32** %addr, align 4
+; ELF64: addi {{[0-9]+}}, {{[0-9]+}}, 1148
+  %0 = load i32** %addr, align 4
+  ret i32* %0
+}
+
+define i32* @t3() nounwind {
+entry:
+; ELF64: t3
+  %addr = alloca i32*, align 4
+  store i32* getelementptr inbounds ([3 x [3 x %struct.A]]* @A, i32 0, i32 0, i32 1, i32 1, i32 0, i32 1), i32** %addr, align 4
+; ELF64: addi {{[0-9]+}}, {{[0-9]+}}, 140
+  %0 = load i32** %addr, align 4
+  ret i32* %0
+}
+
+define i32* @t4() nounwind {
+entry:
+; ELF64: t4
+  %addr = alloca i32*, align 4
+  store i32* getelementptr inbounds ([2 x [2 x [2 x %struct.B]]]* @B, i32 0, i32 0, i32 0, i32 1, i32 1, i32 0, i32 0, i32 1, i32 3, i32 1, i32 2, i32 1), i32** %addr, align 4
+; ELF64: addi {{[0-9]+}}, {{[0-9]+}}, 1284
+  %0 = load i32** %addr, align 4
+  ret i32* %0
+}
diff --git a/test/CodeGen/PowerPC/fast-isel-crash.ll b/test/CodeGen/PowerPC/fast-isel-crash.ll
new file mode 100644
index 0000000000..1813fc96ac
--- /dev/null
+++ b/test/CodeGen/PowerPC/fast-isel-crash.ll
@@ -0,0 +1,23 @@
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7
+
+; Ensure this doesn't crash.
+
+%union.anon = type { <16 x i32> }
+
+@__md0 = external global [137 x i8]
+
+define internal void @stretch(<4 x i8> addrspace(1)* %src, <4 x i8> addrspace(1)* %dst, i32 %width, i32 %height, i32 %iLS, i32 %oLS, <2 x float> %c, <4 x float> %param) nounwind {
+entry:
+  ret void
+}
+
+define internal i32 @_Z13get_global_idj(i32 %dim) nounwind ssp {
+entry:
+  ret i32 undef
+}
+
+define void @wrap(i8 addrspace(1)* addrspace(1)* %arglist, i32 addrspace(1)* %gtid) nounwind ssp {
+entry:
+  call void @stretch(<4 x i8> addrspace(1)* undef, <4 x i8> addrspace(1)* undef, i32 undef, i32 undef, i32 undef, i32 undef, <2 x float> undef, <4 x float> undef)
+  ret void
+}
diff --git a/test/CodeGen/PowerPC/fast-isel-redefinition.ll b/test/CodeGen/PowerPC/fast-isel-redefinition.ll
new file mode 100644
index 0000000000..72422bda44
--- /dev/null
+++ b/test/CodeGen/PowerPC/fast-isel-redefinition.ll
@@ -0,0 +1,10 @@
+; RUN: llc -O0 -verify-machineinstrs -fast-isel-abort -optimize-regalloc -regalloc=basic -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 < %s
+; This isn't exactly a useful set of command-line options, but check that it
+; doesn't crash.  (It crashed formerly on ARM, and proved useful in
+; discovering a bug on PowerPC as well.)
+
+define i32 @f(i32* %x) nounwind ssp {
+  %y = getelementptr inbounds i32* %x, i32 5000
+  %tmp103 = load i32* %y, align 4
+  ret i32 %tmp103
+}
diff --git a/test/CodeGen/PowerPC/fast-isel-shifter.ll b/test/CodeGen/PowerPC/fast-isel-shifter.ll
new file mode 100644
index 0000000000..198bfbecda
--- /dev/null
+++ b/test/CodeGen/PowerPC/fast-isel-shifter.ll
@@ -0,0 +1,50 @@
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
+
+define i32 @shl() nounwind ssp {
+entry:
+; ELF64: shl
+; ELF64: slw
+  %shl = shl i32 -1, 2
+  ret i32 %shl
+}
+
+define i32 @shl_reg(i32 %src1, i32 %src2) nounwind ssp {
+entry:
+; ELF64: shl_reg
+; ELF64: slw
+  %shl = shl i32 %src1, %src2
+  ret i32 %shl
+}
+
+define i32 @lshr() nounwind ssp {
+entry:
+; ELF64: lshr
+; ELF64: srw
+  %lshr = lshr i32 -1, 2
+  ret i32 %lshr
+}
+
+define i32 @lshr_reg(i32 %src1, i32 %src2) nounwind ssp {
+entry:
+; ELF64: lshr_reg
+; ELF64: srw
+  %lshr = lshr i32 %src1, %src2
+  ret i32 %lshr
+}
+
+define i32 @ashr() nounwind ssp {
+entry:
+; ELF64: ashr
+; ELF64: srawi
+  %ashr = ashr i32 -1, 2
+  ret i32 %ashr
+}
+
+define i32 @ashr_reg(i32 %src1, i32 %src2) nounwind ssp {
+entry:
+; ELF64: ashr_reg
+; ELF64: sraw
+  %ashr = ashr i32 %src1, %src2
+  ret i32 %ashr
+}
+