1 files changed, 202 insertions, 0 deletions
diff --git a/test/CodeGen/PowerPC/fast-isel-load-store.ll b/test/CodeGen/PowerPC/fast-isel-load-store.ll
new file mode 100644
index 0000000000..026b15fe5e
--- /dev/null
+++ b/test/CodeGen/PowerPC/fast-isel-load-store.ll
@@ -0,0 +1,202 @@
+; RUN: llc < %s -O0 -verify-machineinstrs -fast-isel-abort -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7 | FileCheck %s --check-prefix=ELF64
+
+; This test verifies that load/store instructions are properly generated,
+; and that they pass MI verification.
+
+@a = global i8 1, align 1
+@b = global i16 2, align 2
+@c = global i32 4, align 4
+@d = global i64 8, align 8
+@e = global float 1.25, align 4
+@f = global double 3.5, align 8
+
+%struct.s = type<{ i8, i32 }>
+%struct.t = type<{ i8, i64 }>
+
+@g = global %struct.s <{ i8 1, i32 2 }>, align 1
+@h = global %struct.t <{ i8 1, i64 2 }>, align 1
+
+@i = common global [8192 x i64] zeroinitializer, align 8
+
+; load
+
+define i8 @t1() nounwind uwtable ssp {
+; ELF64: t1
+  %1 = load i8* @a, align 1
+; ELF64: lbz
+  %2 = add nsw i8 %1, 1
+; ELF64: addi
+  ret i8 %2
+}
+
+define i16 @t2() nounwind uwtable ssp {
+; ELF64: t2
+  %1 = load i16* @b, align 2
+; ELF64: lhz
+  %2 = add nsw i16 %1, 1
+; ELF64: addi
+  ret i16 %2
+}
+
+define i32 @t3() nounwind uwtable ssp {
+; ELF64: t3
+  %1 = load i32* @c, align 4
+; ELF64: lwz
+  %2 = add nsw i32 %1, 1
+; ELF64: addi
+  ret i32 %2
+}
+
+define i64 @t4() nounwind uwtable ssp {
+; ELF64: t4
+  %1 = load i64* @d, align 4
+; ELF64: ld
+  %2 = add nsw i64 %1, 1
+; ELF64: addi
+  ret i64 %2
+}
+
+define float @t5() nounwind uwtable ssp {
+; ELF64: t5
+  %1 = load float* @e, align 4
+; ELF64: lfs
+  %2 = fadd float %1, 1.0
+; ELF64: fadds
+  ret float %2
+}
+
+define double @t6() nounwind uwtable ssp {
+; ELF64: t6
+  %1 = load double* @f, align 8
+; ELF64: lfd
+  %2 = fadd double %1, 1.0
+; ELF64: fadd
+  ret double %2
+}
+
+; store
+
+define void @t7(i8 %v) nounwind uwtable ssp {
+; ELF64: t7
+  %1 = add nsw i8 %v, 1
+  store i8 %1, i8* @a, align 1
+; ELF64: addis
+; ELF64: addi
+; ELF64: addi
+; ELF64: stb
+  ret void
+}
+
+define void @t8(i16 %v) nounwind uwtable ssp {
+; ELF64: t8
+  %1 = add nsw i16 %v, 1
+  store i16 %1, i16* @b, align 2
+; ELF64: addis
+; ELF64: addi
+; ELF64: addi
+; ELF64: sth
+  ret void
+}
+
+define void @t9(i32 %v) nounwind uwtable ssp {
+; ELF64: t9
+  %1 = add nsw i32 %v, 1
+  store i32 %1, i32* @c, align 4
+; ELF64: addis
+; ELF64: addi
+; ELF64: addi
+; ELF64: stw
+  ret void
+}
+
+define void @t10(i64 %v) nounwind uwtable ssp {
+; ELF64: t10
+  %1 = add nsw i64 %v, 1
+  store i64 %1, i64* @d, align 4
+; ELF64: addis
+; ELF64: addi
+; ELF64: addi
+; ELF64: std
+  ret void
+}
+
+define void @t11(float %v) nounwind uwtable ssp {
+; ELF64: t11
+  %1 = fadd float %v, 1.0
+  store float %1, float* @e, align 4
+; ELF64: fadds
+; ELF64: stfs
+  ret void
+}
+
+define void @t12(double %v) nounwind uwtable ssp {
+; ELF64: t12
+  %1 = fadd double %v, 1.0
+  store double %1, double* @f, align 8
+; ELF64: fadd
+; ELF64: stfd
+  ret void
+}
+
+;; lwa requires an offset divisible by 4, so we need lwax here.
+define i64 @t13() nounwind uwtable ssp {
+; ELF64: t13
+  %1 = load i32* getelementptr inbounds (%struct.s* @g, i32 0, i32 1), align 1
+  %2 = sext i32 %1 to i64
+; ELF64: li
+; ELF64: lwax
+  %3 = add nsw i64 %2, 1
+; ELF64: addi
+  ret i64 %3
+}
+
+;; ld requires an offset divisible by 4, so we need ldx here.
+define i64 @t14() nounwind uwtable ssp {
+; ELF64: t14
+  %1 = load i64* getelementptr inbounds (%struct.t* @h, i32 0, i32 1), align 1
+; ELF64: li
+; ELF64: ldx
+  %2 = add nsw i64 %1, 1
+; ELF64: addi
+  ret i64 %2
+}
+
+;; std requires an offset divisible by 4, so we need stdx here.
+define void @t15(i64 %v) nounwind uwtable ssp {
+; ELF64: t15
+  %1 = add nsw i64 %v, 1
+  store i64 %1, i64* getelementptr inbounds (%struct.t* @h, i32 0, i32 1), align 1
+; ELF64: addis
+; ELF64: addi
+; ELF64: addi
+; ELF64: li
+; ELF64: stdx
+  ret void
+}
+
+;; ld requires an offset that fits in 16 bits, so we need ldx here.
+define i64 @t16() nounwind uwtable ssp {
+; ELF64: t16
+  %1 = load i64* getelementptr inbounds ([8192 x i64]* @i, i32 0, i64 5000), align 8
+; ELF64: lis
+; ELF64: ori
+; ELF64: ldx
+  %2 = add nsw i64 %1, 1
+; ELF64: addi
+  ret i64 %2
+}
+
+;; std requires an offset that fits in 16 bits, so we need stdx here.
+define void @t17(i64 %v) nounwind uwtable ssp {
+; ELF64: t17
+  %1 = add nsw i64 %v, 1
+  store i64 %1, i64* getelementptr inbounds ([8192 x i64]* @i, i32 0, i64 5000), align 8
+; ELF64: addis
+; ELF64: ld
+; ELF64: addi
+; ELF64: lis
+; ELF64: ori
+; ELF64: stdx
+  ret void
+}
+