diff --git a/src/gallium/drivers/r600/r600_asm.c b/src/gallium/drivers/r600/r600_asm.c
index f7bb4d3ecba..922cc4883ca 100644
--- a/src/gallium/drivers/r600/r600_asm.c
+++ b/src/gallium/drivers/r600/r600_asm.c
@@ -686,7 +686,7 @@ static int replace_gpr_with_pv_ps(struct r600_bytecode *bc,
 	return 0;
 }
 
-void r600_bytecode_special_constants(uint32_t value, unsigned *sel, unsigned *neg, unsigned abs)
+void r600_bytecode_special_constants(uint32_t value, unsigned *sel)
 {
 	switch(value) {
 	case 0:
@@ -704,14 +704,6 @@ void r600_bytecode_special_constants(uint32_t value, unsigned *sel, unsigned *ne
 	case 0x3F000000: /* 0.5f */
 		*sel = V_SQ_ALU_SRC_0_5;
 		break;
-	case 0xBF800000: /* -1.0f */
-		*sel = V_SQ_ALU_SRC_1;
-		*neg ^= !abs;
-		break;
-	case 0xBF000000: /* -0.5f */
-		*sel = V_SQ_ALU_SRC_0_5;
-		*neg ^= !abs;
-		break;
 	default:
 		*sel = V_SQ_ALU_SRC_LITERAL;
 		break;
@@ -1261,7 +1253,7 @@ int r600_bytecode_add_alu_type(struct r600_bytecode *bc,
 		}
 		if (nalu->src[i].sel == V_SQ_ALU_SRC_LITERAL)
 			r600_bytecode_special_constants(nalu->src[i].value,
-				&nalu->src[i].sel, &nalu->src[i].neg, nalu->src[i].abs);
+				&nalu->src[i].sel);
 	}
 	if (nalu->dst.sel >= bc->ngpr) {
 		bc->ngpr = nalu->dst.sel + 1;
diff --git a/src/gallium/drivers/r600/r600_asm.h b/src/gallium/drivers/r600/r600_asm.h
index 390b15422f6..a526993b318 100644
--- a/src/gallium/drivers/r600/r600_asm.h
+++ b/src/gallium/drivers/r600/r600_asm.h
@@ -321,8 +321,7 @@ int r600_bytecode_add_cfinst(struct r600_bytecode *bc,
 		unsigned op);
 int r600_bytecode_add_alu_type(struct r600_bytecode *bc,
 		const struct r600_bytecode_alu *alu, unsigned type);
-void r600_bytecode_special_constants(uint32_t value,
-		unsigned *sel, unsigned *neg, unsigned abs);
+void r600_bytecode_special_constants(uint32_t value, unsigned *sel);
 void r600_bytecode_disasm(struct r600_bytecode *bc);
 void r600_bytecode_alu_read(struct r600_bytecode *bc,
 		struct r600_bytecode_alu *alu, uint32_t word0, uint32_t word1);
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 54235937a4a..e24338514b1 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -1702,7 +1702,7 @@ static void tgsi_src(struct r600_shader_ctx *ctx,
 			(tgsi_src->Register.SwizzleX == tgsi_src->Register.SwizzleW)) {
 
 			index = tgsi_src->Register.Index * 4 + tgsi_src->Register.SwizzleX;
-			r600_bytecode_special_constants(ctx->literals[index], &r600_src->sel, &r600_src->neg, r600_src->abs);
+			r600_bytecode_special_constants(ctx->literals[index], &r600_src->sel);
 			if (r600_src->sel != V_SQ_ALU_SRC_LITERAL)
 				return;
 		}